(310) 628-9399

Szeto Plumbing · San Gabriel Valley

Pressure regulators and relief valves

High house pressure is hard on every faucet, toilet and hose. So is a relief valve that will not seal. Text (310) 628-9399.

Mon–Sat 8:30 AM–7 PM · San Gabriel Valley

Mon–Sat, 8:30 AM–7 PM

Call or text (310) 628-9399

Kitchens, baths, heaters, main lines

Two different valves

The pressure regulator at the main line controls house pressure. The temperature and pressure relief valve on the heater is a safety release.

Both wear out and both can cause drips.

Street sideHouse sidePressure regulatorGaugeHigh street pressure is stepped down before it reaches fixtures.
Two different valves.

Testing

We put a gauge on a hose bib and watch the reading. A regulator that lets pressure creep is replaced.

Relief valve service

We lift-test the heater's relief valve and replace one that sticks or drips.

T&P relief valvedischarge tubeCold in, hot outDrain valve (flushing)TankWhere sediment, relief valves and fittings are checked.
Relief valve service.

We also check the discharge tube.

A simple check you can do

Buy a hose-bib gauge at any hardware store, screw it onto an outdoor tap, and note the number with every fixture off. Text that number along with a photo of the regulator.

1Text a photoof the leak or fixture2Get a quoteparts covered in it3We text firstthen fix it
A simple check you can do.

If the reading drifts upward over an hour, the regulator is leaking through.

Quick answers

Why do my pipes bang?

Often high pressure or a failing regulator.

Is a dripping relief valve dangerous?

It needs attention. We test it and the pressure.

Related repairs

Where we work in the San Gabriel Valley · Questions before you text