The temperature and pressure relief valve tpr valve opens to release pressure buildup in the water heater when the temperature or the pressure get dangerously high preventing a possible explosion.
Water heater pressure relief valve test.
Watch as one of our master plumbers shows you how to test your water heater s pressure valve and keep your home s hot water system functioning properly.
You only want to drain a gentle stream from the tank.
The ideal water pressure should be between 50 and 60 psi.
The thermostat and pressure release valve on a water heater was designed to help keep your family safe.
If you do it will lock and the water heater will drain.
Gently lift up the t p valve s lever but make sure to not push it all the way up.
A buildup of mineral salt rust and corrosion can cause a tpr valve to freeze up and become nonoperational.
More frequent testing can reduce the chance of a leak caused by mineral and corrosion buildup.
In addition to testing the pressure release valve on your water heater keep your thermostat set at a safe temperature and flush your water heater annually.