Water pressure above 80 PSI is silently damaging your pipes, appliances, and water heater. A PRV regulates incoming pressure to a safe range and protects your entire plumbing system.
Water pressure is measured in PSI (pounds per square inch). Here is what the numbers mean for your home.
Weak fixtures, appliances not filling properly, unsatisfying showers. Indicates a failing PRV or supply issue.
The sweet spot. Strong flow at fixtures, efficient appliances, no stress on pipes or fittings.
Noticeably strong. Shortens appliance life. California Code requires a PRV when street pressure exceeds 80 PSI.
Damaging. Accelerates pipe corrosion, stresses fittings, causes appliance failures, and leads to slab leaks in copper pipe.
Can cause pipe bursts, water heater failures, washing machine hose blowouts, and refrigerator line failures.
Many Los Angeles neighborhoods receive water at 90-120 PSI from the city main. Without a functioning PRV, every pipe, fitting, and appliance in your home absorbs that pressure 24/7. Most homeowners have no idea their pressure is elevated — until something fails. The California Plumbing Code (Section 608.2) requires a PRV when street pressure exceeds 80 PSI.
Free pressure test with every service call. Same-day PRV installation throughout the SFV and Greater LA.
