Pressure Decay Procedure.

Duration : 45 minutes.

• Each team will be given 45 minutes to test, plot the graph and identify the

damaged water filter clusters.

• The team shall complete the testing within 30 minutes and the remaining 15

minutes shall be used for presenting their findings and report.

Each team is required to plot a minimum of three graphs, Pressure against

Time. The first graph shall represent a system without damage filter cluster.

The second graph represents a damaged filter cluster(s). The third graph

represents each cluster of filter, over the entire module. Each module has

about 10 filter clusters.

The testing pressure shall be limited to a maximum of 1 bar only. The air

compressor provided is rated slightly more than 1 bar.

• The team will require to work together and analysis the data collected.

• At the end of the session, the team will be asked to identify the damaged

filter cluster.

• The team will submit their findings and report.

• We will study the information to verify if they understood the method that

they used and applied.

• Each team successfully complete this exercise is awarded up to 10 litres of

water, which will be added to their final total water collected.

Materials.

• Water Cluster filter model stand representing a water recycle plant.

• Compressor.

• Graph Paper

• Writing Pad.

Please submit graph and report to the volunteer at the end of the session.

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