RTI was started as a service of Betz Laboratories Services Offered: On-site resin cleaning - Patented anion resin cleaning On-site RO membrane cleaning Resin separation (remove cation resin from anion resin) Resin analytical analysis (Total capacity, salt split capacity, Fouling levels, moisture content, run

extension, acid tail) Resin pump and hold Vessel Liner spark testing (we did not discuss this but it is available, checks the integrity of the

liner) Technical Audits Operator Training EZ Resin samplers If the needed service is not listed, chances are we can do the work or we know companies who

can do it.

Our mission is to work with our customers in order to make the water plant more efficient, more reliable, all while reducing costs and providing higher quality water.

Resin cleaning and maintenance is necessary to have a properly functioning water plant. Fouled anion resin uses up active sites within the resin, leaving fewer sites for ion exchange Each resin bed has a finite capacity for removing grains from the inlet water Fewer available sites limits the capacity even further Fouled resin leads to lower throughput

Fouled cation resin does not affect the cation throughput, but... The final rinse step during a cation regeneration is done for a preset duration Heavily fouled cation will hold onto the excess regenerate acid longer than cleaned resin Acid will still be present long after the 30 minute rinse time has expired After the 30 minute rinse, the cation will go into service, sending the excess acid to the anion Excess acid to the anion uses up anion capacity, before the anion is even in service Fouled cation resin leads to lower anion throughput. Low throughput means there will be more regenerations required to get meet the monthly

water demand More regenerations use more acid and caustic Low throughput leads to higher operational costs RTI will evaluate resin