Toilet paper biggest problem for commercial drainlines

摘要

The study builds on the findings of the Phase 1 report of the same title and provides new and important insights into the performance of building drains as water flows are incrementally reduced as a result of water efficiency related regulations. The PERC Phase 2.0 report addresses several important areas of study that were not included in the Phase 1 effort. Importantly, the study evaluates the potential for a sanitary pipe size reduction to improve drainline transport characteristics and help to facilitate further flow reductions in plumbing fixtures.