According to a new study from the Plastic Pipe and Fittings Association, conducted by researchers at Drexel University, higher flow velocities and smaller-diameter plumbing produce better building water quality.
The study is included in a recent American Water Works Association journal, AWWA Water Science (Volume 7, Issue 4). It is a crucial first step toward the ultimate goal: obtaining clear, realistic and holistic scientific results to support the safe and appropriate right-sizing of North American water distribution systems and improving plumbing design in model plumbing codes.The Drexel research team investigated key proxies for water safety and biological activity in plumbing systems,
New Plumbing Study Indicates Higher Flow Velocities and Right-Sizing Design Strategies Key for Building Water Quality
Aug 27, 2025
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