A pressure reducing valve, often called a PRV, is a practical device that reduces high municipal water pressure before it can harm household plumbing. Some municipal mains run above 100 psi, and certain systems can even exceed 200 psi. Many plumbing codes require or recommend a PRV when inlet pressure rises above roughly 80 psi. For typical homes, setting a …
The Difference Between a Watts Regulator and Cheap Alternatives





