The most common signs a pressure-reducing valve (PRV) is failing are sudden swings in water pressure, banging or hammering pipes when faucets shut off, very high pressure at faucets, water hammer, leaks at fixtures, and a constantly running toilet. Most failing PRVs let pressure climb above 80 PSI — well above the recommended 50–70 PSI for residential plumbing.
Signs of PRV failure
- Static water pressure measured above 80 PSI
- Banging or hammering pipes when valves close
- Faucets and showers spray harder than normal
- Recurring leaks at toilet fill valves or fixture supplies
- Water heater T&P valve weeping or dripping
A failing PRV puts every fixture in your home at risk of premature failure. Get a quick pressure test and quote with our PRV repair service, or have your full system reviewed during a plumbing inspection.
