Pressure Relief Valve Thru Attic From Hot Water Heater

How to test temperature and pressure relief tpr valve.

Pressure relief valve thru attic from hot water heater.

Open the drain valve on the water heater then open the hot water tap at a nearby sink to release the vacuum on the tank. Place a bucket under the discharge pipe connected to the valve to collect any water and open the t p valve. It usually features a lever you can lift up or down and has a discharge pipe that runs from the valve down to the water heater s base. 4 termination of the discharge piping can be to any of the following.

How to find the water heater pressure relief valve also known as the temperature pressure relief valve or the tpr valve this valve is located near the top of the water heater. Go to our blog post when is a water heater drain pan required. The pressure relief valve is an important safety component of a water heater and a malfunction can have disastrous consequences. The other way to catch leaking water from the tpr valve is by collecting the water with a pan underneath the heater.

These valves may look identical but they re set to go off at 30 psi. A good solution to this risk is the relief valve. Open the valve at the bottom and the pressure relief valve for a minute to drain a little water out of the tank and relieve the pressure. Hopefully this pan will have a hole that allows water to escape into a drain.

Pan serving the water heater. When no water exits the discharge pipe from the t p valve close the drain valve and remove the garden hose. If your water heater is rattling or emitting a high pitched whistling noise it s likely the sound of steam trying to escape the tank which is a sign of far too much pressure pressing against the inner walls. If the water inside the unit gets too hot usually above 210 degrees or pressure builds up too high above 150 psi the water heater can become damaged or even explore.

In the example below an upper pressure relief valve drain not visible behind vent connector has been tied into the drain for the lower one. Water should never be gushing from the valve if this occurs turn off the water supply immediately and contact your plumber for a proper assessment and fix. For more on this. First turn off the gas to the water heater or flip the breaker if it s electric.

Close the cold water cut off valve going into the water heater.