Work Plan Proposal for Phase 2 Drain Line Transport Study

The Plumbing Efficiency Research Coalition has announced its intention to launch a Phase 2 study, building upon the results of its successful and much-anticipated Drainline Transport Study.

While the initial study released in November 2012 provided important insights, it also raised new questions, providing an opportunity for further research. Phase 2 will be focused on the following research areas: Pipe Size Reduction, Additional Flush Volume Levels, Toilet Discharge and Toilet Paper Characteristics.

Download pdf: PERC Test Proposal Phase 2