2018 UPC and IPC Code Changes … · 1/15/2020 5 DIRECT VENT WATER HEATER ITM Direct-Vent Appliances. Appliances that are constructed and installed so that air for combustion is derived

[email protected] | www.iapmo.org | www.iapmolearn.org

2018 UPC and IPC

Code Changes

2020 Edu-code

i

Environmental Note:

In consideration of the environment, this handout has been designed to conserve

printing costs.

Contact:

IAPMO Training and Certification Department at: Chicago Regional Office 18927 Hickory Creek Dr., Suite 220 Mokena, IL 60448-8399 Email: [email protected] Toll free: 1-877-427-6601 Image Disclaimer:

The graphics and illustrations used in this course are presented for educational

purposes only. IAPMO does not endorse or recommend the vendor/product depicted,

nor any vendor or product. IAPMO makes no representations, warranties or guarantees

as to, and assumes no responsibility for, the product(s) depicted and IAPMO expressly

disclaims all liability for damages of any kind arising out of the use or performance of

the vendors, products or services depicted.

Copyright:

The content provided here is copyrighted material. Use of any of the material for other

than personal use is strictly prohibited without the written consent of the International

Association of Plumbing and Mechanical Officials (IAPMO).

Content Disclaimer

The information herein is provided for educational purposes only and shall not be

treated as an official interpretation of the referenced codes or standards. Always refer to

the complete code or standard when installing, replacing, or repairing any plumbing or

mechanical system.

1/15/2020

1

Stars

• Stars indicate

• Code changes

• New sections

• New language or

• Section relocation

Based on the 2018

UPC & IPC Codes

Plumbing Code Training

2018 IPC

Chapter 2

Definitions

ACCESSIBLE

• A site, building, facility

or portion thereof that

complies with Chapter

11 of the International

Building Code.

What is wrong with this picture?

BUILDING

• Any structure utilized

or intended for

supporting or

sheltering any

occupancy

FIXTURE FITTING

• Supply fitting

• A fitting that controls the

volume, direction of flow

or both of water and is

either attached to or

accessed from a fixture,

or is used with an open or

atmospheric discharge

1 2

3 4

5 6

Copyright © 2020 IAPMO

1/15/2020

2

FULL-OPEN VALVE

• A water control or shutoff component in the

water supply system piping that, where adjusted

for maximum flow, the flow path through the

component’s closure member is not a restriction

in the component’s through-flow area.

PRESS-CONNECT JOINT

• A permanent mechanical joint incorporating an

elastomeric seal or an elastomeric seal and

corrosion-resistant grip ring.

• The joint is made with a pressing tool and jaw or ring

approved by the fitting manufacturer.

PUBLIC SWIMMING POOL

• A pool, other than a residential pool, that is intended

to be used for swimming or bathing and is operated

by an owner, lessee, operator, licensee or

concessionaire, regardless of whether a fee is

charged for use

REGISTERED DESIGN PROFESSIONAL

• An individual who is registered or licensed to practice

their respective design profession, as defined by the

statutory requirements of the professional registration

laws of the state or jurisdiction in which the project is

to be constructed.

SWIMMING POOL

• A permanent or temporary structure that is intended

to be used for swimming, bathing or wading and that

is designed and manufactured or built to be

connected to a circulation system.

• A swimming pool can be open to the public

regardless of whether a fee is charged for its use or

can be accessory to a residential setting where the

pool is available only to the household and guests of

the household

2018 UPC

Chapter 2

Definitions

7 8

9 10

11 12


1/15/2020

3

Appliance

• A device that utilizes an energy source to produce light,

heat, power, refrigeration, air conditioning, or

compressed fuel gas.

Aspirator

• A fitting or device

supplied with water or

other fluid under

positive pressure that

passes through an

integral orifice or

constriction, causing

a vacuum.

ITM

Backwater Valve 710.6

ITM

204.0 Bathroom Group

• Any combination of fixtures, not to exceed one

water closet, two lavatories, either one bathtub, or

one combination bath/shower, and one shower,

and may include a bidet and an emergency floor

drain.

Urinal was removed

from the definition.

Category 1

• Activities, systems, or equipment whose failure

is likely to cause major injury or death to

patients, staff, or visitors

Category 2


is likely to cause minor injury to patients, staff, or

visitor

13 14

15 16

17 18


1/15/2020

4

Category 3


is not likely to cause injury to patients, staff, or

visitors, but can cause discomfort.

Category 3 Vacuum System

• A Category 3 vacuum distribution system that can be

either a wet system designed to remove liquid, air-gas,

or solids from the treated area; or a dry system designed

to trap liquids and solids before the service inlet and to

accommodate air-gas only through the service inlet.

Category 4


would have no impact on patient

Combustible Material

• A material that, in the

form in which it is used

and under the conditions

anticipated, will ignite and

burn; a material that does

not meet the definition of

noncombustible. [NFPA

54:3.3.64.1]

Critical Care Area

• A room or space in which failure of equipment or

a system is likely to cause major injury or death

to patients or caregivers (Category 1).

Direct-Vent Appliances

• Appliances that are

constructed and installed

so that all air for

combustion is derived

directly from the

outdoors and all flue

gases are discharged to

the outdoors.

Is this a direct Vent furnace?

19 20

21 22

23 24


1/15/2020

5

DIRECT VENT WATER HEATER

ITM

Direct-Vent Appliances. Appliances that are constructedand installed so that air for combustion is derived directly from the outdoors and flue gases are discharged to the outdoors.

Joint, Press-Connect

• A permanent mechanical joint incorporating an elastomeric seal or an elastomeric seal and corrosion resistant grip ring.

• The joint is made with a pressing tool and jaw or ring that complies with the manufacturer’s installation instructions.

Minimal Sedation (Anxiolysis)

• A drug induced state during which patients

respond normally to verbal commands.

• Although cognitive function and coordination

may be impaired, ventilatory and cardiovascular

functions are unaffected

Medical Air

• For the purposes of this code, medical air is air supplied

from cylinders, bulk containers, or medical air

compressors, or reconstituted from oxygen USP and oil-

free, dry nitrogen NF.

Medical Support Gas

• Nitrogen or instrument air used for any medical support

purpose (e.g., to remove excess moisture from

instruments before further processing, or to operate

medical-surgical tools, air-driven booms, pendants, or

similar applications) and, if appropriate to the

procedures, used in laboratories and are not respired as

part of any treatment.

Nitrogen, NF

• Nitrogen complying as a minimum,

with nitrogen NF.

Nitrogen NF is used as a displacement medium for sterile equipment, A non-oxidizing displacement medium in pharmaceutical vials, And as a propellant in pressurized aerosol type dispensers. It is also used as a coolant for carbon dioxide surgical lasers and a source of pneumatic pressure to power gas operated medical devices

25 26

27 28

29 30


1/15/2020

6

Patient Care Space

• Any space of a health care facility wherein patients are

intended to be examined or treated

Category 1 Space. Space in which failure of equipmentor a system is likely to cause major injury or deathof patients, staff, or visitors. [NFPA 99:3.3.127.1]Category 2 Space. Space in which failure of equipmentor a system is likely to cause minor injury topatients, staff, or visitors. [NFPA 99:3.3.127.2]Category 3 Space. Space in which the failure ofequipment or a system is not likely to cause injury topatients, staff, or visitors but can cause discomfort.[NFPA 99:3.3.127.3]Category 4 Space. Space in which failure of equipmentor a system is not likely to have a physical impact onpatient care. [NFPA 99:3.3.127.4]

Plumbing System

• Includes all potable water, alternate water sources,

building supply, and distribution pipes; all plumbing

fixtures and traps; all drainage and vent pipes; and all

building drains and building sewers

Toilet Facility

• A room or space

containing not less

than one lavatory and

one water closet.

Wet Procedure Locations

• The area in a patient care space where a procedure is

performed that is normally subject to wet conditions

while patients are present, including standing fluids on

the floor or drenching of the work area, either of which

condition is intimate to the patient or staff

Chapter 3 General Regulations2018 IPC

Chapter 3

General Regulations

31 32

33 34

35 36


1/15/2020

7

303.4 Third-party certification

• Plumbing products and materials required by the code to

be in compliance with a referenced standard shall be

listed by a third-party certification agency as complying

with the referenced standards.

• Products and materials shall be identified in accordance

with Section 303.1.

303.5 Cast-iron soil pipe, fittings and components

• Cast iron soil pipes and fittings, and the couplings used

to join these products together, shall be third-party listed

and labeled.

• Third-party certifiers or inspectors shall comply with the

minimum inspection requirements of Annex A or Annex

A1 of the ASTM and CISPI product standards indicated

in the code for such products.

PROTECTION OF PIPES AND

PLUMBING SYSTEM

COMPONENTS

SECTION 305

305.1 Protection against contact

• Metallic piping, except for

cast iron, ductile iron and

galvanized steel, shall not

be placed in direct

contact with steel framing

members, concrete or

cinder walls and floors or

other masonry.


• Metallic piping shall not be placed in direct contact with

corrosive soil.

• Where sheathing is used to prevent direct contact, the

sheathing shall have a thickness of not less than 0.008

inch (8 mil) (0.203 mm) and the sheathing shall be made

of plastic.


• Where sheathing protects piping that penetrates

concrete or masonry walls or floors, the

sheathing shall be installed in a manner that

allows movement of the piping within the

sheathing.

37 38

39 40

41 42


1/15/2020

8

305.6 Protection against physical damage

• In concealed locations where piping, other than cast-iron

or galvanized steel, is installed through holes or notches

in studs, joists, rafters or similar members less than 11/4

inches (32 mm) from the nearest edge of the member,

the pipe shall be protected by steel shield plates.

PIPING SUPPORT

SECTION 308

308.6 Sway bracing

• Where horizontal pipes 4 inches and larger convey

drainage or waste, and where a pipe fitting in that piping

changes the flow direction greater than 45 degrees, rigid

bracing or other rigid support arrangements shall be

installed to resist movement of the upstream pipe in the

direction of pipe flow.

308.6 Sway bracing

• A change of flow

direction into a

vertical pipe shall not

require the upstream

pipe to be braced.

308.10 Thermal expansion tanks

• A thermal expansion

tank shall be supported

in accordance with the

manufacturer’s

instructions.

• Thermal expansion

tanks shall not be

supported by the piping

that connects to such

tanks.

Table Change

43 44

45 46

47 48


1/15/2020

9

Table Change314.2.2 Drain pipe materials and sizes

• Components of the condensate disposal system shall be

cast iron, galvanized steel, copper and copper alloy,

cross-linked polyethylene, polyethylene, ABS, CPVC,

PVC or polypropylene pipe or tubing.

2018 UPC

Chapter 3

General Regulations

301.2 Minimum Standards

• Pipe, pipe fittings, traps, fixtures, material, and devices

used in a plumbing system shall be listed (third-party

certified) by a listing agency (accredited conformity

assessment body) as complying with the approved

applicable recognized standards referenced in this code,

and shall be free from defects

301.2.1 Marking

• Each length of pipe and each

pipe fitting, trap, fixture, material,

and device used in a plumbing

system shall have cast, stamped,

or indelibly marked on it any

markings required by the

applicable referenced standards

and listing agency, and the

manufacturer’s mark or name,

which shall readily identify the

manufacturer to the end user of

the product.

301.2.2 Standards

• A list of plumbing standards that appear in specific

sections of this code is referenced in Table 1701.1.

• Standards referenced in Table 1701.1 shall be applied as

indicated in the applicable referenced section.

• A list of additional standards, publications, practices,

and guides that are not referenced in specific sections of

this code appear in Table 1701.2.

• The documents indicated in Table 1701.2 shall be

permitted in accordance with Section 301.3.

• An IAPMO Installation Standard is referenced in

Appendix I for the convenience of the users of this

code.

49 50

51 52

53 54


1/15/2020

10

309.4 Installation Practices

• Plumbing systems shall be installed in a workmanlike

manner which is in accordance with this code, applicable

standards, and the manufacturer’s installation

instructions.

309.4 Installation Practices

• All materials shall be installed so as not to adversely

affect the systems and equipment or the structure of the

building, and in compliance with all laws and other

provisions of this code.

• All plumbing systems shall be in accordance with

construction documents approved by the AHJ

309.5 Sound Transmission

• Plumbing piping

systems shall be

designed and

installed in

conformance with

sound limitations as

required in the

building code.

312.13 Exposed ABS Piping

• ABS piping shall not be exposed to direct sunlight.

– Exception: ABS piping exposed to sunlight that is

protected by water based synthetic latex paints.

314.4.1 Installation of Thermoplastic Pipe and

Fittings

• Trench width for thermoplastic sewer pipe shall be not

less than 1.25 times the outside diameter of the piping

plus 12 inches or the outside diameter of the piping plus

not less than 16 inches.

314.1 UPC Sewer Inside and Outside the Angle of

Repose

• Shall be 45° therefrom

• Or approved in accordance with 301.2 ITM

55 56

57 58

59 60


1/15/2020

11

319.0 Medical Gas and Vacuum Systems

• 319.1 General.

Such piping shall be in accordance with the requirements of

Chapter 13.

The Authority Having Jurisdiction shall require evidence of the

competency of the installers and verifiers

Fixtures

Chapter 4

2018 IPC Chapter 4

FIXTURES, FAUCETS AND FIXTURE FITTINGS

Major Table Change

61 62

63 64

65 66


1/15/2020

12

403.1.2 Single-user toilet facility and bathing room

fixtures

• The plumbing fixtures located in single-user

toilet facilities and bathing rooms, including

family or assisted use toilet and bathing rooms

that are required by Section1109.2.1 of the

International Building Code, shall contribute

toward the total number of required plumbing

fixtures for a building or tenant space.

403.1.2 Single-user toilet facility and bathing room

fixtures

• Single-user toilet

facilities and bathing

rooms, and family or

assisted-use toilet

rooms and bathing

rooms shall be

identified for use by

either sex.

403.1.3 Lavatory distribution

• Where two or more

toilet rooms are

provided for each sex,

the required number

of lavatories shall be

distributed

proportionately to the

required number of

water closets.

403.2 Separate facilities

• Exceptions:

4. Separate facilities shall not be required in

business occupancies in which the

maximum occupant load is 25 or fewer.

403.3 Employee and public toilet facilities

• For structures and tenant spaces intended for public

utilization, customers, patrons and visitors shall be

provided with public toilet facilities.

• Employees associated with structures and tenant spaces

shall be provided with toilet facilities.

No restrooms

67 68

69 70

71 72


1/15/2020

13


• The number of plumbing fixtures located within the

required toilet facilities shall be provided in accordance

with Section 403 for all users.

• Employee toilet facilities shall be either separate or

combined employee and public toilet facilities

Water and space saving design


• Exception:

Public toilet facilities shall not be required for:

1. Parking garages operated without parking

attendants.

405.3.1 Water closets, urinals, lavatories and bidets

• A water closet, urinal, lavatory or bidet shall not be set

closer than 15 inches from its center to any side wall,

partition, vanity or other obstruction.

What is the distance of X? What is the distance of Y?


• Where partitions or other obstructions do not separate

adjacent fixtures, fixtures shall not be set closer than 30

inches center to center between adjacent fixtures.


• There shall be not less

than a 21-inch

clearance in front of a

water closet, urinal,

lavatory or bidet to any

wall, fixture or door.


• Water closet compartments shall be not less than 30 inches in width and not less than 60 inches in depth for floor-mounted water closets and not less than 30 inches in width and 56 inches in depth for wall-hung water closets.

73 74

75 76

77 78


1/15/2020

14


• Exception:

• An accessible children’s

water closet shall be set

not closer than 12

inches from its center to

the required partition or

to the wall on one side.

405.3.5 Urinal partitions

• The horizontal dimension between walls or partitions at

each urinal shall be not less than 30 inches.

What is the distance of X? What is the distance of Y?

Each urinal utilized by the public or employees shall occupy a separate area with walls or partitions to provide privacy.

What is the distance from the partition to the center of each urinal

What ?

405.4.1 Floor flanges

• Floor flanges for water closets or similar fixtures shall be

not less than 0.125 inch thick for copper alloy, 0.25 inch

thick for plastic and 0.25 inch thick and not less than a 2-

inch caulking depth for cast iron or galvanized malleable

iron.

405.4.1 Floor flanges

• Closet screws and bolts shall be of copper alloy

405.5 Plumbing fixtures with a pumped waste

• Plumbing fixtures with a pumped waste shall comply with

ASME A112.3.4/CSA B45.9.

• The plumbing fixture with a pumped waste shall be

installed in accordance with the manufacturer’s

instructions.

Good Bad Or Indifferent?

79 80

81 82

83 84


1/15/2020

15

408.3 Bidet water temperature

• The discharge water temperature from a bidet fitting shall be limited to not greater than 110°F by a water-temperature-limiting device conforming to ASSE 1070/ASME A112.1070/CSA B125.70 or CSA B125.3

DISHWASHING

MACHINES

SECTION 409

409.1 Approval

• Commercial dishwashing

machines shall conform

to ASSE 1004 and

NSF 3.

• Residential dishwashers

shall conform to NSF

184.

409.3 Waste connection

• The waste connection

of a commercial

dishwashing machine

shall comply with

Section 802.1.6.

• The discharge from a

commercial

dishwashing machine

shall be through an

air gap or air break

into a waste receptor

in accordance with

Section 802.2.

409.4 Residential dishwasher waste connection

• The waste connection of a residential dishwasher shall connect directly to a wye branch fitting on the tailpiece of the kitchen sink, directly to the dishwasher connection of a food waste disposer, or through an air break to a standpipe.

409.4 Residential dishwasher waste connection

• The waste line of a

residential dishwasher

shall rise and be

securely fastened to

the underside of the

sink rim or counter top.

85 86

87 88

89 90


1/15/2020

16

410.1 Approval Drinking Fountains

• Drinking fountains

shall conform to

ASME A112.19.1/CSA

B45.2 or ASME

A112.19.2/CSA B45.1

and water coolers

shall conform to

ASHRAE 18.


• Drinking fountains,

water coolers and

water dispensers

shall conform to NSF

61, Section 9.


• Electrically operated,

refrigerated drinking

water coolers and

water dispensers

shall be listed and

labeled in accordance

with UL 399.

411.3 Water supply

• Where hot and cold water

is supplied to an

emergency shower or

eyewash station, the

temperature of the water

supply shall only be

controlled by a

temperature actuated

mixing valve complying

with ASSE 1071

412.7 Temperature-actuated, flow-reduction devices

for individual fixture fittings

• Temperature-actuated,

flow reduction devices,

where installed for

individual fixture

fittings, shall conform to

ASSE 1062



• A temperature actuated,

flow-reduction device

shall be an approved

method for limiting the

water temperature to

not greater than 120º F

at the outlet of a faucet

or fixture fitting.

91 92

93 94

95 96


1/15/2020

17

• Such devices shall not be used alone as a substitute for

the balanced-pressure, thermostatic or combination

shower valves required in Section 412.3 or as a

substitute for bathtub or whirlpool tub water temperature-

limiting valves required in Section 412.5.


for individual fixture fittings 412.9 Water closet personal hygiene devices

• Personal hygiene devices

integral to water closets

or water closet seats shall

conform to the

requirements of ASME

A112.4.2/CSA B45.16.

412.10 Head shampoo sink faucets

• Head shampoo sink faucets shall be supplied with hot

water that is limited to not more than 120°F by a water-

temperature-limiting device that conforms to ASSE

1070/ASME A112.1070/CSA B125.70.

412.10 Head shampoo sink faucets

• Each faucet shall

have integral check

valves to prevent

crossover flow

between the hot and

cold water supply

connections.

415.2 Flushometer valves and tanks

• Flushometer valves and tanks shall comply with ASSE

1037/ASME A112.1037/ CSA B125.37 or CSA B125.3.

• Vacuum breakers on flushometer valves shall conform to

the performance requirements of ASSE 1001 or CSA

B64.1.1.


• Access shall be provided to vacuum breakers.

• Flushometer valves shall be of the water conservation

type

• Water pressure shall meet the minimum required for

normal operation.

• When operated, the valve shall automatically complete

the cycle of operation, opening fully and closing

positively under the water supply pressure.

97 98

99 100

101 102


1/15/2020

18


• Each flushometer valve

shall be provided with a

means for regulating the

flow through the valve.

• The trap seal to the

fixture shall be

automatically refilled after

each flushing cycle.

415.3.1 Fill valves

• Flush tanks shall be

equipped with an

antisiphon fill valve

• The fill valve backflow

preventer shall be

located not less than

1 inch above the full

opening of the

overflow pipe.

Cooling tower make up water and reservoir

overflow

Auto Fill Valve

Manuel fill valve

Fill Valve openings are below the overflow and the flood rim

415.3.4 Access required

• All parts in a flush

tank shall be provided

with access for repair

and replacement

419.5 Tempered water for public hand-washing

facilities

• Tempered water shall

be delivered through

an approved water-

temperature limiting

device that conforms

to ASSE 1070/ASME

A112.1070/CSA

B125.70 or CSA

B125.3.

421.5.2 Shower lining

• Floors under shower compartments, except where

prefabricated receptors have been provided, shall be

lined and made water tight utilizing material complying

with Sections 421.5.2.1 through 421.5.2.6.

• Such liners shall turn up on all sides not less than 2

inches above the finished threshold level.

103 104

105 106

107 108


1/15/2020

19

421.5.2 Shower lining

• Liners shall be recessed and fastened to an approved

backing so as not to occupy the space required for wall

covering, and shall not be nailed or perforated at any

point less than 1 inch above the finished threshold.

Note the backing is missing

Shower drains with composite lining systems

421.5.2 Shower lining.Liners shall be pitched one-fourth unit vertical in 12 units horizontal(2-percent slope) and shall be sloped toward the fixture drains


Shall be securely fastened to the waste outlet at the seepage entrance, making a water-tight joint between the liner and the outlet.


The completed liner shall be tested in accordance with Section 312.9.

423.3 Footbaths and pedicure baths

• The water supplied to specialty plumbing fixtures, such

as pedicure chairs having an integral foot bathtub and

footbaths, shall be limited to not greater than 120°F by a

water-temperature-limiting device that conforms to ASSE

1070/ASME A112.1070/CSA B125.70 or CSA B125.3.

2018 UPC Chapter 4

FIXTURES, FAUCETS AND FIXTURE FITTINGS

109 110

111 112

113 114


1/15/2020

20

401.2 Quality of Fixtures

• Plumbing fixtures shall be

constructed of dense,

durable, non-absorbent

materials and shall have

smooth, impervious

surfaces, free from

unnecessary concealed

fouling surfaces.

402.4 Wall-Hung Fixtures

• Floor-affixed supports for

off-the-floor plumbing

fixtures for public use

shall comply with ASME

A112.6.1M.

• Framing-affixed supports

for off the-floor water

closets with concealed

tanks shall comply with

ASME A112.6.2.

Flush tanks and similar appurtenances shall be secured by approved non-corrosive screws or bolts

402.9 Design and Installation of Plumbing Fixtures

• Plumbing fixtures shall be installed in accordance with

the manufacturer’s installation instructions.

• The means of backflow prevention shall not be

compromised by the designated fixture fitting mounting

surface.

404.1 Waste Fittings

• Waste fittings shall

comply with ASME

A112.18.2/CSA B125.2,

ASTM F409 or

• Table 701.2 for

aboveground drainage

piping and fittings

407.3 Hot Water Temperature for Public

Lavatories

• Hot water delivered from public use lavatories shall

be limited to a maximum temperature of 120°F by a

device that complies with ASSE 1070/ASME

• A112.1070/CSA B125.70.

• The water heater thermostat shall not be considered

a control for meeting this provision.

– The water heater thermostat

shall not be considered a

control for meeting this

provision:

407.6 Overflow also 409.3

• Where overflows are provided, they shall be

installed in accordance with Section 404.2.

115 116

117 118

119 120


1/15/2020

21

408.2 Water Consumption

• Showerheads shall

have a maximum flow

rate of not more than

2.5 gpm at 80 psi.

408.3 Individual Shower and Tub-Shower

Combination Control Valves

• These valves shall be

installed at the point

of use and comply with

ASSE 1016/ASME

A112.1016/CSA

B125.16 or

• ASME A112.18.1/CSA

B125.1

409.4 Limitation of Hot Water in Bathtubs

and Whirlpool Bathtubs.

• The maximum hot water

temperature discharging from the

bathtub and whirlpool bathtub

filler shall be limited to 120°F by a

device that complies with ASSE

1070/ASME A112.1070/CSA

B125.70.

The water heater thermostat shall not be considered a control for meetingthis provision.

409.4 Limitation of Hot Water in Bathtubs and Whirlpool Bathtubs. The maximum hot water temperature discharging from the bathtub and whirlpool bathtub filler shall be limited to 120°F by a device that is in accordancewith ASSE 1070 or CSA B125.3. The water heater thermostat shall not be considered a control for meeting this provision.

Device to be located under the lav

410.3 Limitation of Water Temperature in Bidets

• The maximum hot

water temperature

discharging from a

bidet shall be limited

to 110°F by a device

that is in accordance

with ASSE 1070 or

CSA B125.3.

411.4 Personal Hygiene Devices

• Water closets with

integral personal

hygiene devices shall

comply with ASME

A112.4.2/CSA

B45.16.

121 122

123 124

125 126


1/15/2020

22

412.1.1 Non-water Urinals

• Where non-water urinals are installed they shall

have a water distribution line rough-in to the

urinal location to allow for the installation of an

approved backflow prevention device in the event

of a retrofit.

413.3 Flush Tanks

• Flush tanks for manual flushing shall be equipped with a

flush valve that complies with ASME A112.19.5/CSA

B45.15 and an anti-siphon fill valve (ballcock) that

complies with ASSE 1002/ASME A112.1002/CSA

B125.12 and installed in accordance with Section

603.5.2.

This diagram was taken from a U.S. Navy training manual, which the

Navy identifies as document number "NAVEDTRA 14265" with a title

of "Utilitiesman basic volume 1".

414.3 Dishwashing Machines

• Domestic dishwashing machines shall discharge

indirectly through an air gap fitting into:

1. A waste receptor 2. A wye branch fitting on the

sink tailpiece 3. A dishwasher connection of

a food waste disposer.

Dishwasher drain

Air gap Fitting

414.3 Dishwashing Machines

• The indirect discharge

for commercial

dishwashing

machines shall be in

accordance with

Section 807.1, and

the direct discharge

shall be in

accordance with

Section 704.3.

417.4 Faucets and Fixture Fittings with Hose

Connected Outlets.

• Faucets and fixture

fittings with pull out

spouts with integral

backflow protection

shall comply with

ASME A112.18.1/CSA

B125.1 or shall have

a backflow preventer

device that complies

with ASME A112.18.3.

127 128

129 130

131 132


1/15/2020

23

422.2.1 Family or Assisted-Use Toilet

Facilities

• Where a separate toilet facility is required for each

sex, and each toilet facility is required to have only

one water closet, two family or assisted-use toilet

facilities shall be permitted in place of the required

separate toilet facilities.

Water Heaters

Chapter 5:

IPC Chapter 5

WATER HEATERS

501.7 Pressure marking of storage tanks

• Storage tanks and water heaters installed for domestic

hot water shall have the maximum allowable working

pressure clearly and indelibly stamped in the metal or

marked on a plate welded thereto or otherwise

permanently attached.

• Such markings shall be in a position with access on the

outside of the tank so as to make inspection or re-

inspection readily possible.

INSTALLATION

SECTION 502

502.1 General

• Solar thermal water

heating systems shall

conform to the

requirements of the

International

Mechanical Code and

ICC 900/SRCC 300.

133 134

135 136

137 138


1/15/2020

24

SAFETY DEVICES

SECTION 504

504.6 Requirements for discharge piping

14. Be one nominal size

larger than the size of

the relief valve outlet,

where the relief valve

discharge piping is

installed with insert

fittings.

• The outlet end of such

tubing shall be

fastened in place.

504.7 Required pan

• Where a storage tank-type water heater or a hot water

storage tank is installed in a location where water

leakage from the tank will cause damage, the tank shall

be installed in a pan constructed of one of the following:

1. Galvanized steel or aluminum of not less than 0.0236 Inch in

thickness.

2. Plastic not less than 0.036 inch in thickness.

3. Other approved materials.

• A plastic pan shall not be installed beneath a gas-fired

water heater.

UPC Chapter 5

WATER HEATERS

504.6 Temperature, Pressure, and Vacuum Relief

Devices

• Discharge piping shall

be installed in

accordance with

Section 608.5.

139 140

141 142

143 144


1/15/2020

25

506.1.1 Other Types of Appliances

• Appliances of other than natural draft design appliances

not designated as Category I vented appliances, and

appliances equipped with power burners shall be

provided with combustion, ventilation, and dilution air in

accordance with the appliance manufacturer’s

instructions.

506.6 Engineered Installations

• Engineered combustion air installations shall

provide an adequate supply of;

– Combustion, ventilation and dilution air and;

– Be approved by the AHJ:

506.8.2 Louvers and Grills

Motorized louvers shall be;– Interlocked with the equipment to be in the full open

position prior to main burner ignition and operation:

– Means shall be provided;

‒ To prevent main burner ignition if louver fails to open

and;

‒ To shut down main burner if louvers close during

burner operation:

507.3 Appliance Support

• Appliances and equipment shall be furnished either with

load-distributing bases or with a sufficient number of

supports to prevent damage to either the building

structure or the appliance and the equipment

507.3.1 Structural Capacity

• At the locations selected for installation of appliances

and equipment, the dynamic and static load carrying

capacities of the building structure shall be checked to

determine whether they are adequate to carry the

additional loads

Section 509.0

Venting of Water Heaters

145 146

147 148

149 150


1/15/2020

26

509.3.6 Above-Ceiling or Non-ducted

Air Handling System

• Shall conform to one of the following requirements:

(1) The venting system shall be a listed special gas

vent, other system serving a Category III or

Category IV appliance, or other positive pressure

vent, with joints sealed in accordance with the

appliance or vent manufacturer’s instructions.

• (2) The vent system shall be installed such that no

fittings or joints between sections are installed in the

above-ceiling space.

509.3.6 Above-Ceiling or Non-ducted Air Handling

System

509.3.6 Above-Ceiling or Non-ducted Air Handling

System

(3) The venting system shall be installed in a conduit or

enclosure with joints between the interior of the

enclosure and the ceiling space sealed.

[NFPA 54:12.4.5.2]

509.4.2 Type of Venting System to Be Used

• 509.4.2 Plastic Piping.

The appliance shall be listed for use

with such venting materials and the

appliance manufacturer’s installation

instructions shall identify the specific

plastic piping material.

• [NFPA 54:12.5.2]

509.6 Gas Vents

(3) Gas vents installed within masonry chimneys shall be

installed in accordance with the manufacturer’s

installation instructions.

Gas vents installed within masonry chimneys shall

be identified with a permanent label installed at the

point where the vent enters the chimney.

The label shall contain the following language: “This

gas vent is for appliances that burn gas. Do not

connect to solid or liquid fuel–burning appliances or

incinerators.

2018 IPC Chapter 6

WATER SUPPLY AND

DISTRIBUTION

151 152

153 154

155 156


1/15/2020

27

602.3.1 Sources

• Individual water supplies shall be constructed and

installed in accordance with the applicable state and

local laws.

• Where such laws do not address all of the requirements

set forth in NGWA-01, individual water supplies shall

comply with NGWA-01 for those requirements not

addressed by state and local laws.

National Ground Water Association

604.11 Individual pressure balancing in-line valves


• Where individual pressure balancing in-line valves for

individual fixture fittings are installed, such valves shall

comply with ASSE 1066.

Such valves shall be installed in a location with

access.

The valves shall not be utilized alone as a substitute

for the balanced pressure, thermostatic or

combination shower valves required in

Section 412.3.

605.4 Water distribution pipe

• Water distribution pipe and tubing shall conform to NSF

61 and shall conform to one of the standards listed in

Table 605.4.

• Hot water distribution pipe and tubing shall have a

pressure rating of not less than 100 psi at 180ºF.

Potable water pump for water distribution system

Copper Alloy materials were added through out the plumbing and mechanical codes

157 158

159 160

161 162


1/15/2020

28

Elevated temperature PE materials were added throughout the plumbing and mechanical codes

Standards were upgraded

605.13.7 Push-fit joints

• Push-fit joints shall

conform to ASSE

1061 and shall be

installed in

accordance with the

manufacturer’s

instructions.



conform to ASSE

1061 and shall be

installed in

accordance with the

• manufacturer’s

instructions.



conform to ASSE 1061

and shall be installed in

accordance with the

manufacturer’s

instructions.

605.23.1 Copper or copper-alloy tubing to

galvanized steel pipe

• Joints between copper

pipe or tubing and

galvanized steel pipe

shall be made with a

copper-alloy or

dielectric fitting or a

dielectric union

conforming to

• ASSE 1079.

163 164

165 166

167 168


1/15/2020

29

606.5.9 Pressure tanks, vacuum relief

• Water pressure tanks

shall be provided with

a vacuum relief valve

at the top of the tank

that will operate up to

a maximum water

pressure of 200 psi

and up to a maximum

temperature of 200ºF.

607.3 Thermal expansion control

• Where a storage water heater

is supplied with cold water that

passes through a check valve,

pressure reducing valve or

backflow preventer, a thermal

expansion control device shall

be connected to the water

heater cold water supply pipe

at a point that is downstream of

all check valves, pressure

reducing valves and backflow

preventers.

608.4 Potable water handling and treatment

equipment

• Water pumps, filters, softeners, tanks and other

appliances and devices that handle or treat potable

water to be supplied to the potable water distribution

system shall be located to prevent contamination from

entering the appliances and devices.

• Overflow, relief valve and waste discharge pipes from

such appliances and devices shall terminate through an

air gap.

608.8 Valves and outlets prohibited below grade

• Potable water outlets and combination stop-and-waste

valves shall not be installed underground or below

grade.

• A freeze proof yard hydrant a hydrant that drains the

riser into the ground shall be considered as having a

stop-and-waste valve below grade.

608.8 Valves and outlets prohibited below grade

• Exception:

Freeze proof yard hydrants that drain the riser

into the ground shall be permitted to be installed,

provided that the potable water supply to such

hydrants is protected in accordance with Section

613.13.2 or 613.13.5, and the hydrants and the piping

from the backflow preventer to the hydrant are

identified in accordance with Section 608.9.

Upgrade standards

169 170

171 172

173 174


1/15/2020

30

608.10 Reutilization prohibited

• Water utilized for the heating or cooling of equipment or

other processes shall not be returned to the potable

water system.

• Such water shall be discharged into a drainage system

through an air gap or shall be utilized for non-potable

purposes.

608.12 Potable water tanks

• Where in contact with potable water intended for drinking

water, water tanks, coatings for the inside of tanks and

liners for water tanks shall conform to NSF 61.

608.12 Potable water tanks

• The interior surface of a potable water tank shall not be

lined, painted or repaired with any material that changes

the taste, odor, color or potability of the water supply

when the tank is placed in, or returned to, service.

608.14.1 Air gap

• Products that are listed and labeled to ASME A112.1.2 or

ASME A112.1.3 shall be considered to be in compliance

with this section.

608.14.5 Pressure vacuum breaker assemblies.

• Pressure vacuum breaker

assemblies shall comply

with ASSE 1020 or CSA

B64.1.2.

• Spill-resistant vacuum

breaker assemblies shall

comply with ASSE 1056

or CSA B64.1.3.

608.14.5 Pressure vacuum breaker assemblies

• These assemblies

shall be installed with

the critical level of the

assembly located not

less than 12 inches

above all downstream

piping and outlets.

175 176

177 178

179 180


1/15/2020

31

608.14.5 Pressure vacuum breaker assemblies

• Pressure vacuum breaker assemblies

shall not be installed in locations where

spillage could cause damage to the

structure.

608.16 Protection of potable water outlets

• Potable water openings and outlets shall be protected

against backflow in accordance with Section 608.16.1,

608.16.2, 608.16.3, 608.16.4, 608.16.4.1 or 608.16.4.2.

608.17.1 Beverage dispensers

• The water supply connection to beverage dispensers

shall be protected against backflow in accordance with

Sections 608.17.1.1 and 608.17.1.2.

608.17.1.1 Carbonated beverage dispensers

• The water supply connection to each carbonated

beverage dispenser shall be protected against backflow

by a backflow preventer conforming to ASSE 1022 or by

an air gap.

Listed backflow preventer

608.17.1.1 Carbonated beverage dispensers

• The portion of the backflow preventer device

downstream from the second check valve of the device

and the piping downstream therefrom shall not be

affected by carbon dioxide gas.

608.17.1.2 Coffee machines and noncarbonated

drink dispensers

• The water supply connection to each coffee machine

and each noncarbonated beverage dispenser shall be

protected against backflow by a backflow preventer

conforming to ASSE 1022 or ASSE 1024, or protected by

an air gap

181 182

183 184

185 186


1/15/2020

32

608.17.9 Dental pumping equipment

• The water supply connection to each dental pumping

equipment system, the water supply system shall be

protected against backflow in accordance with Section

608.14.1, 608.14.2, 608.14.5, 608.14.6 or 608.14.8.

608.17.10 Humidifiers

• The water supply connection to humidifiers that do not

have internal backflow protection shall be protected

against backflow by a backflow preventer conforming to

ASSE 1012 or by an air gap.

HEALTH CARE

PLUMBING

SECTION 609

609.1 Scope

• The provisions of this section shall apply to the special

devices and equipment installed and maintained in the

following occupancies: Group I-1, Group I- 2, Group B

ambulatory care facilities, medical offices, research and

testing laboratories, and Group F facilities manufacturing

pharmaceutical drugs and medicines.

DRINKING WATER

TREATMENT UNITS

SECTION 611

611.1 Design

• Point-of-use reverse

osmosis drinking water

treatement units shall

comply with NSF 58 or

CSA B483.1.

• Drinking water treatment

units shall meet the

requirements of NSF 42,

NSF 44, NSF 53, NSF 62

or CSA B483.1

187 188

189 190

191 192


1/15/2020

33

UPC Chapter 6

Waste Distribution Piping

601.2 Hot and Cold Water Required

• In occupancies

where plumbing

fixtures are

installed for public

use, hot water shall

be required for

bathing and

washing purposes.

Running Water Required 601.0

• Water closets, urinals,

and trap primers in

designated

nonresidential buildings

• May be provided with

reclaimed water as

defined and regulated

by Chapter 16 of this

code.

601.3 Identification of a Potable and Nonpotable Water System

• In buildings where potable water and nonpotable water systems are

installed, each system shall be clearly identified in accordance with Sections

601.3.1 through 601.3.5.

603.4.4 General Requirements

• Direct connections between potable water piping and the sewer connected wastes shall not exist under any condition:

• Where potable water is

discharged to the drainage

system;– It shall be by means of an

approved airgap of 2 pipe

diameters of the supply inlet

but in no case less than 1"

What’s wrong inspector?

603.5.21 Chemical Dispensers

• The water supply to chemical dispensers shall be

protected against backflow.

• The chemical dispenser shall comply with ASSE 1055 or

the water supply shall be protected by one of the

following methods:(1) Air gap

(2) Atmospheric vacuum breaker (AVB)

(3) Pressure vacuum breaker backflow prevention assembly (PVB)

(4) Spill-resistant pressure vacuum breaker (SVB)

(5) Reduced-pressure principle backflow prevention assembly (RP)

193 194

195 196

197 198


1/15/2020

34

603.5.18.1 Dialysis Water Systems

• The individual connections of the dialysis related

equipment to the dialysis pure water system

shall not require additional backflow protection.

604.2 Lead Content

• The maximum allowable lead content in pipes, pipe

fittings, plumbing fittings, and fixtures intended to convey

or dispense water for human consumption shall be not

more than a weighted average of 0.25 percent with

respect to the wetted surfaces of pipes, pipe fittings,

plumbing fittings, and fixtures.

604.2 Lead Content

• For solder and flux,

the lead content shall

be not more than 0.2

percent where used in

piping systems that

convey or dispense

water for human

consumption.

604.10.1 Tracer Wire

• Plastic materials for building supply piping outside

underground shall have an electrically continuous

corrosion-resistant blue insulated copper tracer wire, or

other approved conductor installed adjacent to the

piping.

605.12 PVC Plastic Pipe and Joints

• PVC piping shall not be exposed to direct sunlight unless

the piping does not exceed 24 inches and is wrapped

with not less than 0.04 of an inch thick tape or otherwise

protected from UV degradation.

199 200

201 202

203 204


1/15/2020

35

608.2 Excessive Water Pressure

• The expansion tank shall be properly sized and installed

in accordance with the manufacturer’s instructions and

listing.

• Systems designed by registered engineers shall be

permitted to use approved pressure relief valves in lieu

of expansion tanks provided such relief valves have a

maximum pressure relief setting of one- hundred (100)

pounds per square inch (689 kPa) or less.

Relief Valves

• T&P Relief Valve

• Vacuum Relief Valve

607.5 Valves

• Where a potable water

supply tank is located

above the fixtures,

appliances, or system

components it serves it

shall be equipped with a

vacuum relief valve that is

in accordance with CSA

Z21.22.

608.5 Requirements for discharge piping

• The discharge piping serving a pressure relief valve, temperature relief valve or combination thereof shall:

• 1. Equal to the size of the valve outlet

and shall discharge full size to the flood

level of the area receiving the

discharge and pointing down

• 2. Materials shall be rated at not less

than the operating temperature of the

system and approved for such use.

• 3. Discharge pipe shall discharge

independently by gravity through an air gap

into the drainage system or outside

of the building with the end of the pipe not

exceeding 2 feet and not less than 6 inches

above the ground and pointing downwards.

609.4 Testing

• Upon completion of a section or of the entire hot and

cold water supply system, the system shall be tested

with water or air.

• The potable water test pressure shall be greater than or

equal to the working pressure under which the system is

to be used.

• The air pressure shall be a minimum of 50 psi. Plastic

pipe shall not be tested with air.

• The piping system shall withstand the test pressure

without showing evidence of leakage for a period of not

less than 15 minutes.

609.4 Testing Exception:

• PEX, PP or PE-RT

tube shall be

permitted to be tested

with air where

permitted by the

manufacturer’s

instructions.

205 206

207 208

209 210


../../../../Vidios/T&P.mpg

1/15/2020

36

612.2 Types of Systems

• This section shall apply to stand-alone and

multipurpose wet-pipe sprinkler systems that

do not include the use of antifreeze.

• A multipurpose fire sprinkler system shall

provide potable water to both fire sprinklers

and plumbing fixtures.

New Section 612.2 Types of Systems

• A stand-alone sprinkler system shall be

separate and independent from the

potable water distribution system.

• A backflow preventer shall not be required

to separate a stand-alone sprinkler

system from the water distribution system

where the sprinkler system material is in

accordance with the requirements of

Section 604.0.

Pressure Reducing Valve with Thermal Expansion

Bypass

Chapter 7 Drainage

2018 IPC

Chapter 7 Drainage

701.2 Connection to sewer required

• Sanitary drainage piping from plumbing fixtures in

buildings and sanitary drainage piping systems from

premises shall be connected to a public sewer.

211 212

213 214

215 216


1/15/2020

37


• Where a public sewer is not available, the sanitary

drainage piping and systems shall be connected to a

private sewage disposal system in compliance with state

or local requirements.


• Where state or local requirements do not exist for private

sewage disposal systems, the sanitary drainage piping

and systems shall be connected to an approved private

sewage disposal system that is in accordance with the

International Private Sewage Disposal Code.

Retrieved from: https://www.pca.state.mn.us/living-green/healthy-septic-systems


• Exception:

• Sanitary drainage piping and systems that convey only

the discharge from bathtubs, showers, lavatories, clothes

washers and laundry trays shall not be required to

connect to a public sewer or to a private sewage

disposal system provided that the piping or systems are

connected to a system in accordance with Chapter 13 or

14.

217 218

219 220

221 222


https://www.pca.state.mn.us/living-green/healthy-septic-systems

1/15/2020

38

BUILDING SEWER

SECTION 703

703.2 Drainage pipe in filled ground

• Where a building sewer or building drain is installed on

filled or unstable ground, the drainage pipe shall conform

to one of the standards for ABS plastic pipe, cast-iron

pipe, copper or copper alloy tubing, PVC plastic pipe or

polypropylene plastic pipe indicated in Table 702.3.

703.4 Existing building sewers and building drains

• Where the entire sanitary drainage

system of an existing building is

replaced, existing building drains under

concrete slabs and existing building

sewers that will serve the new system

shall be internally examined to verify

that the piping is sloping in the correct

direction, is not broken, is not

obstructed and is sized for the drainage

load of the new plumbing drainage

system to be installed.

DRAINAGE PIPING

INSTALLATION

SECTION 704

223 224

225 226

227 228


1/15/2020

39

704.1 Slope of horizontal drainage piping

• The slope of a horizontal drainage pipe shall be not less

than that indicated in Table 704.1 except that where the

drainage piping is upstream of a grease interceptor,

the slope of the piping shall be not less than 1/4 inch per

foot (2- percent slope).

704.2 Reduction in pipe size in the direction of flow

• The size of the drainage piping shall not be reduced in

the direction of the flow.

• The following shall not be considered as a reduction in

size in the direction of flow:

1. A 4-inch by 3-inch water closet flange.

2. A water closet bend fitting having a 4-inch inlet and a 3-inch

outlet provided that the 4-inch leg of the fitting is upright

and below, but not necessarily directly connected to, the

water closet flange.

3. An offset closet flange.

705.10.3 Threaded joints

• Threads shall

conform to ASME

B1.20.1.

705.15 Polypropylene plastic

• The joint between polypropylene plastic pipe and fittings shall incorporate an elastomeric seal.

• The joint shall conform to ASTM D3212.

• Mechanical joints shall not be installed above ground

705.16.1 Copper pipe or tubing to cast-iron hub

pipe

• Joints between

copper pipe or tubing

and cast-iron hub

pipe shall be made

with a copper or

copper alloy ferrule or

compression joint.

229 230

231 232

233 234


1/15/2020

40

705.16.2 Copper or copper-alloy pipe or tubing to

galvanized steel pipe.

• Joints between

copper or copper-

alloy pipe or tubing

and galvanized steel

pipe shall be made

with a copper-alloy

fitting or dielectric

fitting

705.16.4 Plastic pipe or tubing to other piping

material

• Joints between different types of plastic pipe

shall be made with an approved adapter fitting,

or by a solvent cement joint only where a single

joint is made between ABS and PVC pipes at the

end of a building drainage pipe and the

beginning of a building sewer pipe using a

solvent cement complying with ASTM D3138.

705.18 Caulking ferrules

• Caulking ferrules shall

be of copper alloy and

shall be in accordance

with Table 705.18.

705.19 Soldering bushings

• Soldering bushings

shall be of copper or

copper alloy and shall

be in accordance with

Table 705.19.

PROHIBITED JOINTS

AND CONNECTIONS

SECTION 707

707.1 Prohibited joints

• 5. Solvent-cement joints between different types

of plastic pipe except where provided for in

Section 705.16.4.

235 236

237 238

239 240


1/15/2020

41

708.1.6 Cleanout plugs

• Cleanout plugs shall be of copper-alloy, plastic or other

approved materials.

• Cleanout plugs for borosilicate glass piping systems

shall be of borosilicate glass.

• Copper-alloy cleanout plugs shall conform to ASTM A74

and shall be limited for use only on metallic piping

systems.

709.3 Conversion of gpm flow to dfu values

• Where discharges to a waste receptor or to a

drainage system are only known in gallons per

minute values, the drainage fixture unit values for

those flows shall be computed on the basis that 1

gpm of flow is equivalent to two drainage fixture

units. (WOW!)

Discharge to floor sink will be 20 gpm at maximum flow

Pump is rated at 30 gpm

How many fixture units do we size the gravity drain for?

60 fixture units

SUMPS AND EJECTORS

SECTION 712

712.3.2 Sump pit

• The pit shall be

provided with access

and shall be located

such that all drainage

flows into the pit by

gravity.

712.3.2 Sump pit

• The sump pit shall be

fitted with a gastight

removable cover that

is installed not more

than 2 inches below

grade or floor level.

Are there any problems?

712.3.3 Discharge pipe and fittings

• 712.3.3.1 Materials

• Pipe and fitting

materials shall be

constructed of copper

or copper-alloy,

CPVC, ductile iron,

PE, or PVC.

Are there any violations?

Galvanized pipe

241 242

243 244

245 246


1/15/2020

42

What are the problems?

Galvanized pipe

Drainage into the lid

REPLACEMENT OF UNDERGROUND

BUILDING SEWERS AND BUILDING DRAINS BY

PIPE-BURSTING METHODS

SECTION 716

716.1 General

• This section shall govern the replacement of existing

building sewer and building drain piping by pipe

bursting methods.

716.2 Applicability

• The replacement of building sewer and building drain piping

by pipe-bursting methods shall be limited to gravity drainage

piping of sizes 6 inches and smaller.

• The replacement piping shall be of the same nominal size as

the existing piping.

716.4 Pipe

• The replacement pipe shall be made of high-density

polyethylene (HDPE) and shall have a standard

dimension ratio (SDR) of 17.

• The pipe shall be in compliance with ASTM F714.

716.5 Pipe fittings

• Pipe fittings to be connected to the replacement pipe

shall be made of high-density polyethylene (HDPE) and

shall be in compliance with ASTM D2683.

247 248

249 250

251 252


1/15/2020

43

716.6 Cleanouts

• Where the existing building sewer or building drain did

not have cleanouts meeting the requirements of this

code, cleanout fittings shall be installed as required by

this code.2018 UPC

Chapter 7 Drainage

701.2 Drainage Piping

• Materials for drainage piping shall be in accordance with one of the referenced standards in Table 701.2 except that:1. No galvanized wrought-iron or galvanized steel pipe shall be

used underground and shall be kept not less than six (6) inches (152 mm) above ground.

2. Except for individual single-family dwelling units, materials exposed

within ducts or plenums shall have a flame-spread index of not more

than 25 and a smoke developed index of not more than 50, where

tested in accordance with ASTM E84 or UL 723.

These tests shall comply with all requirements of the standards to

include the sample size, both for width and length.

Plastic pipe shall not be tested filled with water

701.2 Materials (cont’d)

4. Copper tube for drainage and vent piping shall

have a weight of not less than that of copper

drainage tube type DWV.

701.2(5) Drainage Pipe

– Stainless steel 304 pipe and fittings shall not be

installed underground and shall be kept at least 6

inches (152 mm) aboveground.

Stainless Steel Pipe and Fittings

253 254

255 256

257 258


1/15/2020

44


6. Cast-iron soil pipe and fittings and the stainless steel

couplings used to join these products shall be listed

and tested in accordance with standards referenced in

Table 701.2.

Such pipe and fittings shall be marked with the country

of origin, manufacturer’s name or registered trademark

as defined in the product standards, the third

party certifier’s mark, and the class of the pipe or fitting

701.2 Plastic - ABS/PVC DWV Pipe

• Installed per standards,

(see Table 701.0) and

Chapter 14 “Firestop

Protection”

• Shall have a

flame/smoke index of

not more than 25/50.

when exposed within

ducts and plenums.

(Except single family

dwellings.)

Fittings

Santee Santee on its back

701.3.1 Screwed Pipe

• Fittings on screwed

pipe shall be of the

recessed drainage

type. Burred ends

shall be reamed to

the full bore of the

pipe.

702.3 Continuous Flow

• For a continuous flow

into a drainage

system, such as from a

pump, sump ejector,

air conditioning

equipment, or similar

device, 2 fixture units

shall be equal to each

gallon per minute of

flow.

259 260

261 262

263 264


1/15/2020

45

705.5 Polyethylene (PE) Sewer Pipe

• Polyethylene (PE) sewer pipe or tubing and fitting joining

methods shall be installed in accordance with the

manufacturer’s installation instructions and shall comply

with Section 705.5.1 through Section 705.5.1.3.

705.5.1 Heat-Fusion

• Heat-fusion joints between PE sewer pipe or tubing and

fittings shall be assembled in accordance with Section

705.5.1.1 through Section 705.5.1.3 using butt-fusion,

electro-fusion, or socket-fusion heat methods.

• Do not disturb the joint until cooled to ambient

temperature

705.5.1.1 Butt-Fusion Joints

• Butt-fusion joints for PE pipe shall be installed in

accordance with ASTM F2620 and shall be made by

heating the prepared ends of two pipes, pipe and fitting,

or two fittings by holding ends against a heated element.

• The heated element shall be removed when the

required melt or times are obtained and heated ends

shall be placed together with applied force. Do not

disturb the joint until cooled to ambient temperature.

705.5.1.2 Electro-Fusion Joints

• Electro-fusion joints shall be heated internally by a

conductor at the interface of the joint.

• Fittings shall comply with ASTM F1055 for the

performance requirements of polyethylene electro-fusion

fittings.


• The specified electro-

fusion cycle used to form

the joint requires

consideration of the

properties of the

materials being joined,

the design of the fitting

being used, and the

environmental conditions.


• Align and restrain fitting to pipe to prevent movement

and apply electric current to the fitting.

• Turn off the current when the required time has elapsed

to heat the joint.


temperature

265 266

267 268

269 270


1/15/2020

46

705.6.2 Solvent Cement Joints

• Solvent cement joints for PVC pipe and fittings shall be clean from dirt and moisture.

• Where surfaces to be joined are cleaned and free of dirt, moisture, oil, and other foreign material, apply primer purple in color that complies with ASTM F656. No purple

primer

707.4 Cleanout locations UPC

• A cleanout shall be

installed above the

fixture connection

fitting, serving each

urinal, regardless of

the location of the

urinal in the

building.

Cleanout

TABLE 702.1

DRAINAGE FIXTURE UNIT VALUES (DFU)

• Buildings having a clothes-washing

area with clothes washers in a

battery of three or more clothes

washers shall be rated at 6 fixture

units each for purposes of sizing

common horizontal and vertical

drainage piping.

2015 UPC ITM

SIZE OF PIPE (inches) 1 ¼ 1 ½ 2 2 ½ 3 4

Maximum Units

Drainage Piping1

Vertical

Horizontal

1

1

22

1

163

83

323

143

484

354

256

2165

Maximum Length

Drainage Piping

Vertical, (feet)

Horizontal (unlimited)

45 65 85 148 212 300

Vent Piping

Horizontal and Vertical

Maximum Units

Maximum Lengths, (feet)

1

45

8

60

24

120

48

180

84

212

256

300

Sanitary Tee and Double

Fixture Fitting

2015 UPC

271 272

273 274

275 276


1/15/2020

47

Pot Sink with Floor

Drain

704.3

2015 UPC

704.3 Fixture Connections UPC

• Pot sinks, scullery sinks, dishwashing sinks,

silverware sinks, and other similar fixtures

shall be connected directly to the drainage

system.

• A floor drain shall be provided adjacent to

the fixture, and the fixture shall be connected

on the sewer side of the floor drain trap,

provided that no other drainage line is

connected between the floor drain waste

connection and the fixture drain.

• The fixture and floor drain shall be trapped

and vented in accordance with this code.

CONNECTIONS BETWEEN DRAINAGE

PIPING AND FITTINGS

SECTION 706

706.1 Changes in Direction of Drainage Flow.

• Changes in direction of

drainage piping shall be

made by the appropriate

use of approved fittings

and shall be of the angles

presented by a one-

sixteenth bend, one-

eighth bend, or one-sixth

bend, or other approved

fittings of equivalent

sweep.Figure 5

707.4 Location (Cleanout)

• (3) Excepting the building drain, its horizontal branches, and urinals, a cleanout shall not be required on a pipe or piping that is above the floor level of the lowest floor of the building.

710.1 UPC Drainage of Fixtures With Flood Level Rim Located Below Upstream Manhole

• Cleanouts for drains that pass through a backwater valve

shall be clearly identified with a permanent label stating

“backwater valve downstream”.

Backwater valve Downstream

277 278

279 280

281 282


1/15/2020

48

SECTION 710.1 Backflow Protection

• Fixtures installed on a floor level

that is lower than the next

upstream manhole cover shall be

protected by installing an

approved type of backwater

valve.

• Fixtures on floor levels above

such elevation shall not

discharge through the backwater

valve.

711.0 Suds Relief

• Drainage connections shall not be made within 8’ of any vertical to horizontal change when suds producing fixtures are present

• Bathtub, laundry sink, washing machine, kitchen sink, dishwashers are suds producing

• Parallel vent stacks shall connect

8’ above lowest point

• Exception:– Single family residence and stacks

under 3 stories

Suds Relief in the Drainage System 715.3 Existing Sewers

• Replacement of existing building sewer and building

storm sewers using trenchless methodology and

materials shall be installed in accordance with ASTM

F1216.

• Cast-iron soil pipes and fittings shall not be repaired or

replaced by using this method aboveground or

belowground.

• Replacement using cured-in-place pipe liners shall not

be used on collapsed piping or when the existing piping

is compromised.

2018 IPC

Chapter 8

INDIRECT/SPECIAL WASTE

801.1 Scope

• This chapter shall further control matters concerning

food-handling establishments, sterilizers, humidifiers,

clear-water waste, swimming pools, methods of

providing air breaks or air gaps, and neutralizing

devices for corrosive wastes

283 284

285 286

287 288


1/15/2020

49

801.2 Protection

• Devices, appurtenances, appliances and apparatus

intended to serve some special function, such as

sterilization, humidification, distillation, processing,

cooling, or storage of ice or foods, and that discharge to

the drainage system, shall be provided with protection

against backflow, flooding, fouling, contamination and

stoppage of the drain. INDIRECT WASTES

SECTION 802

802.1 Where required

• Food-handling equipment, in other than dwelling units,

clear-water waste, humidifiers, dishwashing machines

and utensils, pots, pans and dishwashing sinks shall

discharge through an indirect waste pipe as specified in

Sections 802.1.1 through 802.1.8.

802.1 Where required

• Fixtures not required to be indirectly connected by this

section and the exception to Section 301.6 shall be

directly connected to the plumbing system in accordance

with Chapter 7.

802.2 Material, joints and connections

• The materials, joints, connections and methods utilized

for the construction and installation of indirect waste

piping systems shall comply with the applicable

provisions of Chapter 7.

802.4.3.1 Connection of laundry tray to standpipe

• As an alternative for a

laundry tray fixture

connecting directly to a

drainage system, a

laundry tray waste line

without a fixture trap shall

connect to a standpipe for

an automatic clothes

washer drain.

289 290

291 292

293 294


1/15/2020

50

802.4.3.1 Connection of laundry tray to standpipe

• The standpipe shall extend not less than 30 inches

above the weir of the standpipe trap and shall extend

above the flood level rim of the laundry tray.

• The outlet of the laundry tray shall not be greater than 30

inches horizontal distance from the side of the standpipe.

Chapter 9 Venting

2018 IPC

Chapter 9 Vents AIR ADMITTANCE

VALVES

SECTION 918

918.8 Prohibited installations

• Air admittance valves shall not be used to vent sumps or

tanks except where the vent system for the sump or

tank has been designed by an engineer.

• Air admittance valves shall not be installed on

outdoor vent terminals for the sole purpose of

reducing clearances to gravity air intakes or

mechanical air intakes.

2018 UPC

Chapter 7 Drainage

295 296

297 298

299 300


1/15/2020

51

701.2 Drainage Piping

• Materials for drainage piping shall be in accordance with one of the referenced standards in Table 701.2 except that:1. No galvanized wrought-iron or galvanized steel pipe shall be

used underground and shall be kept not less than six (6) inches (152 mm) above ground.

2. Except for individual single-family dwelling units, materials exposed

within ducts or plenums shall have a flame-spread index of not more

than 25 and a smoke developed index of not more than 50, where

tested in accordance with ASTM E84 or UL 723.

These tests shall comply with all requirements of the standards to

include the sample size, both for width and length.

Plastic pipe shall not be tested filled with water


4. Copper tube for drainage and vent piping shall

have a weight of not less than that of copper

drainage tube type DWV.

701.2(5) Drainage Pipe

– Stainless steel 304 pipe and fittings shall not be

installed underground and shall be kept at least 6

inches (152 mm) aboveground.


6. Cast-iron soil pipe and fittings and the stainless steel

couplings used to join these products shall be listed

and tested in accordance with standards referenced in

Table 701.2.

Such pipe and fittings shall be marked with the country

of origin, manufacturer’s name or registered trademark

as defined in the product standards, the third

party certifier’s mark, and the class of the pipe or fitting

701.2 Plastic - ABS/PVC DWV Pipe

• Installed per standards,

(see Table 701.0) and

Chapter 14 “Firestop

Protection”

• Shall have a

flame/smoke index of

not more than 25/50.

when exposed within

ducts and plenums.

(Except single family

dwellings.)

301 302

303 304

305 306


1/15/2020

52

701.3.1 Screwed Pipe

• Fittings on screwed

pipe shall be of the

recessed drainage

type. Burred ends

shall be reamed to

the full bore of the

pipe.

702.3 Continuous Flow

• For a continuous flow

into a drainage

system, such as from a

pump, sump ejector,

air conditioning

equipment, or similar

device, 2 fixture units

shall be equal to each

gallon per minute of

flow.

705.5 Polyethylene (PE) Sewer Pipe

• Polyethylene (PE) sewer pipe or tubing and fitting joining

methods shall be installed in accordance with the

manufacturer’s installation instructions and shall comply

with Section 705.5.1 through Section 705.5.1.3.

705.5.1 Heat-Fusion

• Heat-fusion joints between PE sewer pipe or tubing and

fittings shall be assembled in accordance with Section

705.5.1.1 through Section 705.5.1.3 using butt-fusion,

electro-fusion, or socket-fusion heat methods.


temperature

705.5.1.1 Butt-Fusion Joints

• Butt-fusion joints for PE pipe shall be installed in

accordance with ASTM F2620 and shall be made by

heating the prepared ends of two pipes, pipe and fitting,

or two fittings by holding ends against a heated element.

• The heated element shall be removed when the

required melt or times are obtained and heated ends

shall be placed together with applied force. Do not

disturb the joint until cooled to ambient temperature.


• Electro-fusion joints shall be heated internally by a

conductor at the interface of the joint.

• Fittings shall comply with ASTM F1055 for the

performance requirements of polyethylene electro-fusion

fittings.

307 308

309 310

311 312


1/15/2020

53


• The specified electro-

fusion cycle used to form

the joint requires

consideration of the

properties of the

materials being joined,

the design of the fitting

being used, and the

environmental conditions.


• Align and restrain fitting to pipe to prevent movement

and apply electric current to the fitting.

• Turn off the current when the required time has elapsed

to heat the joint.


temperature

705.6.2 Solvent Cement Joints

• Solvent cement joints for PVC pipe and fittings shall be clean from dirt and moisture.

• Where surfaces to be joined are cleaned and free of dirt, moisture, oil, and other foreign material, apply primer purple in color that complies with ASTM F656. No purple

primer

707.4 Cleanout locations UPC


installed above the

fixture connection

fitting, serving each

urinal, regardless of

the location of the

urinal in the

building.

Cleanout

TABLE 702.1

DRAINAGE FIXTURE UNIT VALUES (DFU)

• Buildings having a clothes-washing

area with clothes washers in a

battery of three or more clothes

washers shall be rated at 6 fixture

units each for purposes of sizing

common horizontal and vertical

drainage piping.

2015 UPC ITM

313 314

315 316

317 318


1/15/2020

54

SIZE OF PIPE (inches) 1 ¼ 1 ½ 2 2 ½ 3 4

Maximum Units

Drainage Piping1

Vertical

Horizontal

1

1

22

1

163

83

323

143

484

354

256

2165

Maximum Length

Drainage Piping

Vertical, (feet)

Horizontal (unlimited)

45 65 85 148 212 300

Vent Piping

Horizontal and Vertical

Maximum Units

Maximum Lengths, (feet)

1

45

8

60

24

120

48

180

84

212

256

300

Sanitary Tee and Double

Fixture Fitting

2015 UPC

Pot Sink with Floor

Drain

704.3

2015 UPC

704.3 Fixture Connections UPC

• Pot sinks, scullery sinks, dishwashing

sinks, silverware sinks, and other similar

fixtures shall be connected directly to the

drainage system.

• A floor drain shall be provided adjacent to

the fixture, and the fixture shall be

connected on the sewer side of the floor

drain trap, provided that no other drainage

line is connected between the floor drain

waste connection and the fixture drain.

• The fixture and floor drain shall be trapped

and vented in accordance with this code.

Is this a correct installation?

CONNECTIONS BETWEEN DRAINAGE

PIPING AND FITTINGS

SECTION 706

319 320

321 322

323 324


1/15/2020

55

706.1 Changes in Direction of Drainage Flow.

• Changes in direction of

drainage piping shall be

made by the appropriate

use of approved fittings

and shall be of the angles

presented by a one-

sixteenth bend, one-

eighth bend, or one-sixth

bend, or other approved

fittings of equivalent

sweep.Figure 5

707.4 Location (Cleanout)

• (3) Excepting the building drain, its horizontal branches, and urinals, a cleanout shall not be required on a pipe or piping that is above the floor level of the lowest floor of the building.

710.1 UPC Drainage of Fixtures With Flood Level Rim Located Below Upstream Manhole

• Cleanouts for drains that pass through a backwater valve

shall be clearly identified with a permanent label stating

“backwater valve downstream”.

Backwater valve Downstream

SECTION 710.1 Backflow Protection

• Fixtures installed on a floor level

that is lower than the next

upstream manhole cover of shall

be protected by installing an

approved type of backwater

valve.

• Fixtures on floor levels above

such elevation shall not

discharge through the backwater

valve.

711.0 Suds Relief

• Drainage connections shall not be made within 8’ of any vertical to horizontal change when suds producing fixtures are present

• Bathtub, laundry sink, washing machine, kitchen sink, dishwashers are suds producing

• Parallel vent stacks shall connect

8’ above lowest point

• Exception:– Single family residence and stacks

under 3 stories

Suds Relief in the Drainage System

325 326

327 328

329 330


1/15/2020

56

715.3 Existing Sewers

• Replacement of existing building sewer and building

storm sewers using trenchless methodology and

materials shall be installed in accordance with ASTM

F1216.

• Cast-iron soil pipes and fittings shall not be repaired or

replaced by using this method aboveground or

belowground.

• Replacement using cured-in-place pipe liners shall not

be used on collapsed piping or when the existing piping

is compromised.

2018 UPC

Chapter 9 Vents

Three Basic Methods of Venting

• Combination waste and vent

• Continuous waste and vent

• Wet vent

Design Applications

• Single Duty Piping

– Vent pipe is only a vent pipe

– Drain pipe is only a drain pipe

– All sizing based upon Table 7-3, Table 7-5 and Section 904

Design Applications

• Double Duty Piping

– One pipe section may serve as a drain or vent or both

– These functions require changes in design (size, fixture type, location, length) based upon orientation

901.2 Vents Required

• Each plumbing fixture trap shall be protected against siphonage and backpressure, and air circulation shall be ensured throughout all parts of the drainage system by means of vent pipes installed in accordance with the requirements of this chapter and as otherwise required by this code.

331 332

333 334

335 336


1/15/2020

57

901.3 Trap Seal Protection

• The vent system shall be designed to prevent a trap

seal from being exposed to a pressure differential

that exceeds 1 inch water column on the outlet side

of the trap.

Correct Installation of

Fixture Vents

• Allows for equal pressure on

both sides of the fixture trap

• Air circulation is assured

throughout system

902.1 Interceptor

• Vent piping shall be

permitted to be omitted on

an interceptor where such

interceptor acts as a primary

settling tank and discharges

through a horizontal indirect

waste pipe into a secondary

interceptor.

• The second interceptor shall

be properly trapped and

vented.

Indirect Waste – Vent not Required

Vent Pipe Grades and

Connections

SECTION 905

905.2 Vent Connection to Horizontal Drain Line

337 338

339 340

341 342


1/15/2020

58

905.5 Location of Opening

• The vent pipe opening from a soil or waste

pipe, except for water closets and similar

fixtures, shall not be below the weir of the

trap.

905.5 Location of Opening

Crown Vent Crown vents

3 inches minimum

on 1-1/2 inch also

fitting problem

Improperly Installed Individual Vents906.1 Roof Termination

• ABS and PVC piping

exposed to sunlight shall

be protected by water

based synthetic latex

paints.

343 344

345 346

347 348


http://www.bing.com/images/search?q=crown+vented+traps&view=detail&id=C12328D3FF0AFBA94399C34FB1F411BAD8958052&first=1

http://www.bing.com/images/search?q=crown+vented+traps&view=detail&id=3E9937496B6A6EBCD719F29426A7F4E3F98707D6&first=1

1/15/2020

59

906.2 Clearance906.3 Use of Roof

• Vent pipes shall be extended separately or combined, of

full required size, not less than 6 inches above the roof

or fire wall.

• Flag poling of vents shall be prohibited except where the

roof is used for Vents within 10 feet of a part of the roof

that is used for assembly purposes or parking shall

extend not less than 7 feet above such roof and shall be

securely stayed.

907.0 Vent Stacks and Relief Vents

• Each drainage stack

that extends 10 or more

stories shall be served

by a parallel vent stack

• Each such vent stack

shall also be connected

to the drainage stack at

each fifth floor

Base of the relief vent (Yoke Vent)Plumber

Yoke Vent 907.2

• The yoke vent connection to the vent stack shall be placed not less than 42 inches above the floor level, and the yoke vent connection to the drainage stack shall be using a wye-branch fitting placed below the lowest drainage branch connection serving that floor

908.1 Vertical Wet Venting

• Wet venting is limited to

vertical drainage piping

receiving the discharge

from the trap arm of one

and two fixture unit

fixtures that also serves

as a vent not exceeding

four fixtures.

908.1 Vertical Wet Venting

• Wet-vented fixtures

shall be within the

same story; exceed 6

feet in developed

length

349 350

351 352

353 354


1/15/2020

60

908.2 Horizontal Wet Venting for a Bathroom Group

908.1.2 Vent Connection

• The dry vent connection to the wet vent shall be an

individual vent for the bidet, shower, or bathtub.

• One or two vented lavatory(s) shall be permitted to

serve as a wet vent for a bathroom group.

Horizontal Wet Venting

Lav

Shower

WC

Lav

Horizontal Wet Vent

In Accordance with 2015 UPC

908.2 Horizontal Wet Venting for a Bathroom Group

• Only one wet-vented fixture drain or trap arm shall

discharge upstream of the dry-vented fixture drain

connection.

• Dry vent connections to the horizontal wet vent shall

be in accordance with Section 905.2 and Section

905.3

908.2.1 Vent Connection

Lav

Bathtub

WC

Start ofWet Vent

Wet VentEnd of

GravityDrain

908.2.2 Size

• The wet vent shall be sized based on the fixture unit discharge into the wet vent.

• The wet vent shall be not less than two (2) inches in diameter for four (4) dfu or less, and not less than three (3) inches in diameter for five (5) dfu or more.

• The dry vent shall be sized in accordance with Tables 702.1 and 703.2 based on the total fixture units discharging into the wet vent.

Lav

Bathtub

WC

Start ofWet Vent

Wet VentEnd of

GravityDrain

908.2 Horizontal Wet Venting for a

Bathroom Groups

908.2.3 Trap Arm

• The length of the trap arm shall not exceed the limits in

Table 1002.2. The trap size shall be in accordance with

Section 1003.3. The vent pipe opening from the

horizontal wet vent, except for water closets and similar

fixtures, shall not be below the weir of the trap.

355 356

357 358

359 360


1/15/2020

61

908.2.4 Water Closet

Backwater Valve

Vent rolled above the center line drainage pattern fitting used Shower is wet vented by the lav

The water closet fixture drain or trap arm connection to the wet vent shall be downstream of all fixture drain or trap arm connections to the horizontal wet vent

908.2.5 Additional Fixtures

• Additional fixtures shall discharge downstream of the wet

vent system and be conventionally vented. Only the

fixtures within the bathroom group shall connect to the

wet-vented horizontal branch.


• Additional fixtures shall

discharge downstream of

the wet vent system and

be conventionally vented.

• Only the fixtures within

the bathroom group shall

connect to the wet-vented

horizontal branch.

Lav

Bathtub

WC

Start ofWet Vent

Wet VentEnd of

GravityDrain

908.2 Horizontal Wet Venting for a Bathroom

Groups

Backwater Valve

Vent rolled above the center line drainage pattern fitting used Shower is wet vented by the lav

908.2.4 Water ClosetThe water closet fixture drain or trap arm connection to the wet vent shall be downstream of all fixture drain or trap arm connections to the horizontal wet vent

Rough Plumbing Bath Room Group

TOILET Basin

Long sweep

Toilet

Basin

Shower

905.2 Horizontal Drainage Pipe. Where vents connect to a horizontal drainage pipe, each vent pipe shall have its invert taken off above the drainage centerline of such pipedownstream of the trap being served.

361 362

363 364

365 366


1/15/2020

62

Tub

Shower

Toilet

Basin

Bathroom Group


• Additional fixtures shall discharge

downstream of the wet vent system and

be conventionally vented.

• Only the fixtures within the bathroom

group shall connect to the wet-vented

horizontal branch.

FIGURE 908.2A

LATERAL CONNECTIONS TO THE HORIZONTAL WET VENT 909.0 Island Sink Venting

CO

CO

CountertopKitchen Sink

1 1/2”1/8 bend

1/4 bend

Comb. wye & 1/8

2”

2”

1 1/2”

1 1/2”

Drain shall serve

no other fixtures

Island ventSink drain

Foot Vent

911.0 Circuit Venting

• 911.1.1 Multiple Circuit-Vented Branches

• Circuit-vented horizontal branch drains are permitted to

be connected together.

• Each group of a maximum of eight fixtures shall be

considered a separate circuit vent and shall be in

accordance with the requirements of this section.

367 368

369 370

371 372


1/15/2020

63

911.1.1 Multiple Circuit-Vented Branches 911.2 Vent Size and Connection

• The circuit vent shall be not less than 2 inches in

diameter and the connection shall be located

between the two most upstream fixture drains.

• The vent shall connect to the horizontal branch

on the vertical.

• The circuit vent pipe shall not receive the

discharge of a soil or waste.

911.3 Slope and Size of Horizontal Branch

• The slope of the vent section of the horizontal branch

drain shall be not more than 1 inch per foot.

• The entire length of the vented section of the horizontal

branch drain shall be sized for the total drainage

discharge to the branch.

911.3.1 Size of Multiple Circuit Vent

• Multiple circuit vented branches shall be permitted to

connect on the same floor level.

• Each separate circuit-vented horizontal branch that is

interconnected shall be sized independently in

accordance with Section 911.

• The downstream circuit-vented horizontal branch shall

be sized for the total discharge into the branch, including

the upstream branches and the fixtures within the

branch.

911.4 Relief Vent

• A 2 inch relief vent shall be provided for circuit-vented

horizontal branches receiving the discharge of four or

more water closets and connecting to a drainage stack

that receives the discharge of soil or waste from upper

horizontal branches.

373 374

375 376

377 378


1/15/2020

64

911.4.1 Connection and Installation

• The relief vent shall connect to the horizontal branch

drain between the stack and the most downstream

fixture drain of the circuit vent.

• The relief vent shall be installed on the vertical to the

horizontal branch.

911.5 Additional Fixtures

Is this illustration correct?

Multi-story condo building parking garage

Vents Tied together below the rim

Combo used for a fixture drain connection

Rough Plumbing

P-Trap with a vertical drop

Drilling or Tapping a pipe to make a connection

310.2 Drainage and Vent Piping. No drainage or vent piping shall be drilled and tapped for the purpose of making connections thereto, and no cast-iron soil pipe shall be threaded.

379 380

381 382

383 384


1/15/2020

65

Rough plumbing

Double fixture fitting

Double Combo

Island vent Right or wrong?

Must be the end of the branch

Direction of flow

What about the cleanout?

Island Vent

Toilets

Circuit vent

Multiple story venting

Washer drain

Washer box location

Yoke Vent

Washer vent connection

385 386

387 388

389 390


1/15/2020

66

Tyler ruf wal fittings

Yoke vents

Drain stack

Washer drain

Base of yoke vent

Vent stack

Plumber

Vent stack

711.0 Suds Relief.711.1 General. Where parallel vent stacks are required, they shall connect to thedrainage stack at a point 8 feet above the lowest point of the drainage stack.

391 392

393 394

395 396


1/15/2020

67

2018 IPC

Chapter 10

TRAPS, INTERCEPTORS AND SEPARATORS

1003.3 Grease interceptors

• Grease interceptors

shall comply with the

requirements of

Sections 1003.3.1

through 1003.3.8.

Grease Remediator

1003.3.2 Food waste disposers restriction

• A food waste

disposer shall not

discharge to a

grease interceptor.

Is this a problem?

1003.3.3 Additives to grease interceptors

• Dispensing systems that

dispense interceptor

performance additives to

grease interceptors shall not be

installed except where such

systems dispense microbes for

the enhancement of aerobic

bioremediation of grease and

other organic material, or for

inhibiting growth of pathogenic

organisms by anaerobic

methods.

1003.3.3 Additives to grease interceptors

• Such microbial dispensing systems shall be installed

only where the grease interceptor manufacturer’s

instructions allow such systems and the systems

conform to ASME A112.14.6.

• Systems that discharge emulsifiers, chemicals or

enzymes to grease interceptors shall be prohibited.

2018 UPC

Chapter 10

TRAPS, INTERCEPTORS AND SEPARATORS

397 398

399 400

401 402


1/15/2020

68

Waterseal Trap

• Provides a liquid seal

• Prevents sewer gas and vermin from entering the

structure

• Traps shall be separately vented except;

– As provided in other sections of the code

“Dirty Arm” – Use Only Drainage Pattern Durham Fittings

1002.4 Vent Pipe Opening

• Vent pipe

opening of trap

arm shall not

be below the

weir of the trap

since it

constitutes an

“S” trap.

Improper Fittings Used for Vent Connection

Trap Weir

Inner Edge of Vent

1007.2 Trap Seal Primers

• Potable water supply trap seal primer valves shall

comply with ASSE 1018.

• Drainage and electronic design type trap seal primer

devices shall comply with ASSE 1044.

Trap primer gravity type

Trap PrimersMultiple Trap Primer Installation

403 404

405 406

407 408


1/15/2020

69

2018 IPC

Chapter 11

STORM DRAINAGE

1103.4 Cleanout


installed on the

building side of the

trap and shall be

provided with access.

Reference is for combined storm drain sewers

1106.5 Parapet wall scuppers

• Where scuppers are used for primary roof drainage or

for secondary (emergency overflow) roof drainage or

both, the quantity, size, location and inlet elevation of the

scuppers shall be chosen to prevent the depth of

ponding water on the roof from exceeding the maximum

water depth that the roof was designed for as

determined by Section 1611.1 of the International

Building Code

1106.5 Parapet wall scuppers

• Scupper openings shall be not less than 4 inches in height and have a width that is equal to or greater than the circumference of a roof drain sized for the same roof area.

• The flow through the primary system shall not be considered when locating and sizing secondary scuppers.

409 410

411 412

413 414


1/15/2020

70

SECTION 1113

SUMPS AND PUMPING SYSTEMS

• 1113.1.2 Sump pit

• The pit shall be provided with access and shall

be located such that all drainage flows into the

pit by gravity.

Storm water collection and management

2018 IPC

Chapter 13

NONPOTABLE WATER SYSTEMS

1301.6 Components and materials

• Piping, plumbing components and materials used in

collection and conveyance systems shall be of material

approved by the manufacturer for the intended

application.

Image Courtesy of GRAF

1301.9.1 Location

• Any storage tank or portion thereof that is above grade

shall be protected from direct exposure to sunlight by

one of the following methods:

1. Tank construction using opaque, UV-resistant

materials such as heavily tinted plastic, fiberglass,

lined metal, concrete, wood, or painted to prevent

algae growth.

2. Specially constructed sun barriers.

3. Installation in garages, crawl spaces or sheds.

1301.9.6 Access

• Exception:

• Treated-water storage

tanks that are less than

800 gallons in volume

and installed below grade

shall not be required to

be equipped with a

manhole provided that

the tank has a service

port of not less than 8

inches in diameter.

1301.9.8 Draining of tanks

• Tanks shall be provided with a means of emptying the

contents for the purpose of service or cleaning.

• Tanks shall be drained by using a pump or by a drain

located at the lowest point in the tank.

415 416

417 418

419 420


1/15/2020

71

ON-SITE NONPOTABLE WATER REUSE

SYSTEMS

SECTION 1302

1302.1 General

• The provisions of ASTM E2635 and Section 1302 shall

govern the construction, installation, alteration and repair

of on-site non-potable water reuse systems for the

collection, storage, treatment and distribution of on-site

sources of non-potable water as permitted by the

jurisdiction.

1302.2 Sources

• Where approved and as

appropriate for the

intended application,

water from other non-

potable sources shall be

collected for reuse by on-

site non-potable water

reuse systems,

Condensate

Green house sink water

1302.8.1 Bypass valve

• Bypass valves shall

be provided with

access that allows

for removal.

• Two shutoff valves

shall not be installed

to serve as a bypass

valve.

NONPOTABLE RAINWATER

COLLECTION

AND DISTRIBUTION SYSTEMS

SECTION 1303

1303.1.1 Fire protection systems

• The storage, treatment

and distribution of non-

potable water to be

used for fire protection

systems shall be in

accordance with the

International Fire Code.

421 422

423 424

425 426


1/15/2020

72

1303.2 Collection surface

• Rainwater shall be collected only from above-

ground impervious roofing surfaces constructed

from approved materials and where approved,

vehicular parking or pedestrian walking

surfaces.

1303.3 Debris excluders

• Downspouts and leaders shall be connected to a

debris excluder or equivalent device that is

designed to remove leaves, sticks, pine needles

and similar debris to prevent such from entering

the storage tank.

1303.4 First-flush diverter

• First-flush diverters shall operate automatically and shall

not rely on manually operated valves or devices.

• First-flush diverters shall be provided with access for

maintenance and service.

1303.12 Pumping and control system

• Mechanical equipment including pumps, valves

and filters shall be provided with access that

allows for removal in order to perform repair,

maintenance and cleaning.

1303.15.2 First-flush diverter test

• First-flush diverters shall be tested by introducing water into the collection system upstream of the diverter.

• Proper diversion of the first amount of water shall be in accordance with the requirements of Section 1303.4.

1303.15.9 Collected raw rainwater quality

• ASTM E2727 shall be used

to determine what, if any,

site conditions impact the

quality of collected raw

rainwater and whether

those site conditions require

treatment of the raw water

for the intended end use or

make the water unsuitable

for specific end uses.

427 428

429 430

431 432


NOTES _____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

NOTES _____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

_____________________________________________________________________________________

Documents

2018 UPC and IPC Code Changes … · 1/15/2020 5 DIRECT VENT WATER HEATER ITM Direct-Vent Appliances. Appliances that are constructed and installed so that air for combustion is derived