Should I test my water heater pressure relief valve?
Sometimes, debris, rust, corrosion, and freezing temperatures can cause the TPR valve to fail. We recommend testing your TPR valve ever 6 months to make sure it’s working properly. After the test, lower the water heater thermostat temperature to around 120 degrees Fahrenheit to avoid scalding and overheating.
What causes a hot water heater pressure relief valve to open?
When water is heated up inside of a water heater, thermal expansion causes the pressure inside of the tank to build up. If the temperature’s or pressure in your tank exceeds a certain level (often times 210 degrees and 150 psi), the relief valve opens up and allows some water to drain out of the tank.
How can I tell if my water heater pressure regulator is bad?
The drain line should feel cool to the touch, except where it connects to the valve. If your drain line feels hot, the relief valve is open and needs replacing. Lift the test lever on top of the temperature and pressure relief valve. This should release a small amount of steam and hot water from the tank.
Where can I Find my water pressure regulator?
You can find your home’s water pressure regulator where the main water line comes into your home by the main shut off valve. Look at the photo below at the magnified area. It’s typical of most installations.
Where is the pressure relief valve on my water heater?
Find the temperature and pressure relief valve on your water heater. It could be on the side of the tank, on the top of the tank or attached to the line delivering hot water to your home.
What do you need to know about pressure regulator valves?
Pressure regulator valves come in two main styles: direct acting and pilot operated. The majority of residential water systems use direct-acting valves. These valves contain a heat-resistant diaphragm attached to a spring. When water pushes on the diaphragm with enough force, the pressure causes the valve to close more tightly.
The drain line should feel cool to the touch, except where it connects to the valve. If your drain line feels hot, the relief valve is open and needs replacing. Lift the test lever on top of the temperature and pressure relief valve. This should release a small amount of steam and hot water from the tank.
Find the temperature and pressure relief valve on your water heater. It could be on the side of the tank, on the top of the tank or attached to the line delivering hot water to your home.
You can find your home’s water pressure regulator where the main water line comes into your home by the main shut off valve. Look at the photo below at the magnified area. It’s typical of most installations.
How to test the TPR valve on a water heater?
To test the TPR valve, simply lift it up and down several times. This should lift the attached brass stem and hot water should get flow out of the drainpipe. You should hear a gurgling sound as the valve allows some water to be released into the drain tube.