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  • Writer's pictureG&C Plumbing and Heating

My Water Heater Pressure Release Valve Is Leaking – What Should I Do?

Updated: Dec 16, 2021

If you’ve noticed water pooling around your hot water heater, this may be because of the water heater pressure release valve. Wondering what this means, and what you should do about it? Find out now!

Where Is the Water Heater Pressure Release Valve?

The water heater pressure release valve is attached to the upper portion of your hot water tank.

It typically consists of a valve that attaches to the side of the tank with a long copper tube or PVC tube that runs vertically downward, allowing water to drain out of the valve when necessary.

If you are having trouble finding the valve on your unit, or cannot identify it, we recommend searching for the make and model of your water heater on the internet. The manufacturer’s schematics and manuals will help you locate the water heater pressure relief valve.

What Is the Water Heater Pressure Release Valve & What Does It Do?

The water heater pressure release valve, also known as the “temperature and pressure” (T&P) valve is a valve that helps control the pressure and temperature of your water heater, preventing it from overheating, becoming too highly pressurized, and potentially exploding.

The way this valve works is by sometimes letting a little bit of water drip out of the tank. When there is too much pressure inside the tank, the valve opens up to relieve this pressure and some water will drip out of it. This is normal, and indicates that the valve is functioning properly.

However, if your water heater pressure release valve is constantly leaking a lot of water, the water contains debris, or your valve is making a lot of noise like whistling and screeching, this may indicate that it has failed, and is not operating properly.

What Should I Do If My Water Heater Pressure Release Valve Is Leaking?

If your water heater pressure release valve only leaks every once in a while, this is normal. It’s doing its job, and there’s nothing to worry about. Just keep an eye on it to make sure it’s not draining constantly.

But if you notice the aforementioned issues like lots of drainage coming from the valve, water flooding, or whistling and screeching sounds from the valve, you should:

  1. Turn off the power to the heater – You can flip the breaker attached to an electric heater, turn off the gas to a gas heater, or use an on/off switch if present on the heater itself.

  2. Turn off the water – Located the water supply going into the tank and shut it off to prevent more water from building up.

  3. Call G&C Plumbing to get help – Call us right away to get help. A damaged or failing water heater pressure relief valve could cause serious damage, so you need to work with a professional to repair or replace your water heater, as necessary.

Get Help from The Pros At G&C Plumbing – Call Today

Before you call G&C Plumbing for help, remember to shut off the power and water to your hot water heater. Then, call us today at 508-541-8783, and we’ll head your way first thing the next day.

We’ll check your water heater pressure relief valve, determine the source of the issue, and let you know your best option for restoring the proper, safe functionality of your hot water heater. Call today to get the help you need in Franklin or Bellingham, MA today.


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