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How to Test a Water Heater Pressure Relief Valve

How to Test a Water Heater Pressure Relief Valve

If your water heater is not working, you might be in need of heater repair. But there are still a few things you can do before contacting your local plumber. One of those things is pressure relief valve testing.

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Unfortunately, water heater pressure relief valve testing comes with a range of risks. Take a look at the Mythbusters® “Hot Water Heater Explosion” video — that’s what can happen when the temperature/pressure relief valve is disabled in an improper way.

What is the proper pressure relief valve testing procedure and where can you find the water heater pressure valve? Hurley & David experts will tell you everything you need to know. We’ll tell you where to find your water heater relief valve and the safest way to test your water pressure.

Follow our guide to know all there is to know about boiler pressure relief valve testing and how to test water pressure. With the safety guidelines in this infographic, testing the water heater pressure valve is a piece of cake.

Temperature relief valve test step by step inforgraphic

How to test your pressure relief valve

We recommend testing your water heater pressure twice a year. Here’s how you should test your water heater pressure relief valve:

  1. Locate the valve on the top or side of your water heater. Place a bucket or pan under the drain pipe.
  2. Lift the lever to hold the valve open for five seconds. Be careful: the water is hot! Wear shoes and keep bucket level.

If the valve won’t open or no water comes out; the valve drips or doesn’t fully seal after you test it; you notice water pooling below the drainpipe in the future…

contact our plumbing experts right away! Your water heater pressure relief valve might be dysfunctional and you might be in need of emergency water heater repair services.