How to Open a Water Heater Pressure Relief Valve

Jun. 17, 2024

How to Open a Water Heater Pressure Relief Valve

Are you wondering how to open a water heater pressure relief valve? For most homeowners, tinkering with the water heater tank can feel a little nerve-wracking. However, opening a pressure relief valve is one task that is relatively straightforward. The most difficult part of the task is finding the hot water heater pressure relief valve on your specific model. Keep reading for the information you need to find the valve and open it.

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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. 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. If you aren't sure where to find the valve, refer to your water tank owner's manual.

The purpose of this valve is to release water, thereby, lowering pressure in the water tank. Without the water heater pressure relief valve, the pressure within the water tank could become higher than the tank is meant to handle, which could result in an explosion. Testing the valve annually is an important task to maintain the safety and optimal function of your water heater tank, which is one reason why scheduling regular professional maintenance with your local Mr. Rooter® Plumbing is a good idea.

How to Open the Hot Water Pressure Relief Valve

Always refer to your owner's manual before you begin troubleshooting your water tank. For most units, open the water pressure relief valve by simply lifting the valve up until the attached brass stem rises. When you do this, hot water will rush out of the pipe near the bottom of the water tank. Then, push the lever back down to close the valve and stop the water flow.

Why Do You Need to Open the Hot Water Pressure Relief Valve?

There are a few reasons why you might need to open the pressure relief valve on your water tank:

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Ensuring the valve is working properly
Checking for water leaks from your water heater
Relieving built-up pressure within the water tank

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If you discover the valve is not working properly or you think there may be a leak, it's time to seek help from the professional plumbers at Mr. Rooter Plumbing. We will get to the bottom of the issue and provide any repairs or replacements necessary, as well as dependable, regular maintenance services to keep your water tank operating its best year-round. Contact your local Mr. Rooter Plumbing online or call today.

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