High Water Pressure in Your Aledo Home? Signs Your PRV Is Failing

If faucet cartridges keep failing, toilet fill valves keep running, and your water heater has already needed a new T&P valve, you may not have a plumbing problem. You may have a water pressure problem — and specifically, a failing pressure reducing valve on the main line into your Aledo home.

Excess pressure doesn’t announce itself. It just quietly shortens the life of every fixture, appliance, and pipe joint downstream. And in the Aledo area, where municipal supply often enters homes at 90 to 110 psi, that quiet damage can add up to thousands of dollars before anyone traces the cause back to the PRV.

A pressure reducing valve is a bell-shaped brass fitting installed on the main water line where it enters your home, usually near the water meter or the exterior wall of the garage. Its job is to take incoming municipal pressure — which can range from 80 to over 150 psi depending on your elevation and the local pump station — and drop it to a safe residential level, typically 55 to 70 psi.

Every PRV has a diaphragm and a spring inside. Both wear out. A typical PRV lasts 10 to 15 years in Aledo’s hard water — sometimes less if incoming pressure runs high. When it fails, it fails in one of two ways: stuck open (letting full municipal pressure through) or stuck partially closed (starving the home of flow).

Any single symptom on its own isn’t proof of a PRV problem. Two or more, especially within a year of each other, usually is.

A water pressure gauge with a hose-bib fitting costs about $12 at any hardware store. Thread it onto an exterior hose bib — preferably one on the same side of the house as the incoming main — open the valve fully, and read the gauge. For an accurate reading, do this when no fixtures inside the home are running.

Anything above 80 psi is above International Plumbing Code residential maximum and is actively damaging fixtures. Anything above 100 psi is an emergency. If your reading is below 40 psi, you likely have the opposite problem — a stuck-closed PRV or a supply-side restriction.

High water pressure is one of the top causes of catastrophic plumbing failures in North Texas homes. The washing machine supply hose that bursts on a Tuesday and floods 800 square feet of drywall was almost always the last stage of a pressure problem no one noticed. So was the copper pipe that pinhole-leaked inside a wall, and the water heater that ruptured its inner tank at year seven instead of year twelve.

Insurance adjusters and plumbers see the same story constantly: five to ten years of quiet damage, then a single failure that costs $8,000 to $40,000 in remediation. All of it preventable with a $350 PRV replacement.

PRVs are almost never rebuilt. The internal parts — diaphragm, spring, seat — are proprietary to each manufacturer, and by the time one fails, the brass body has usually corroded to the point that opening it introduces more risk than value. A full replacement takes a licensed plumber about 90 minutes, requires shutting the main off at the meter, and runs $350 to $650 installed for a residential-grade valve.

A pressure test takes ten minutes and settles the question of whether your fixture problems are downstream failures or a supply-side pressure issue. If the reading confirms the PRV is failing, replacement is a same-visit job in most cases.

To schedule a water pressure test in Aledo, call 817-438-6142 and a licensed technician will bring calibrated test equipment on the first visit.