A report warning cities against the use of PVC pipes in water systems sparked swift and resounding criticism from the plastics industry, its advocates and at least one leading scientific expert.

A report from a coalition of U.S. environmental advocacy groups has warned of the health risks of PVC plastic and urged public officials against using the material in community drinking water pipes.

NEW: A Uni-Bell PVC Pipe Association official has a rebuttal to the Beyond Plastics report covered in this story. Read the detailed update here. Bennington, Vt.-based Beyond Plastics, a nonprofit ...

Bypass pipes, accompanied by a three-way control valve, are often seen in hydronic systems at both served loads (e.g., reheat coils) as well as at primary equipment (e.g., cooling towers). Reasons for ...