90 PSI Hose Bib? Your PRV May Be Failing Testing an exterior hose bib is a smart first step. A simple pressure gauge can show a hidden plumbing problem. In this case, the gauge showed 90 PSI. That reading is higher than many homes should run. High water pressure can stress pipes, valves, faucets, and… Continue reading 90 PSI Hose Bib? Your PRV May Be Failing