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As seen in the featured image, a TPR valve is required to have a discharge pipe/tube. This tube should be aimed straight to the ground and never go up. This is because hot water will come out of the TPR valve as it releases water. Therefore, extremely hot water should discharge to the ground for safety.

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The water heater is known for its high heat and high pressure. The water heater temperature-pressure relief valve (TPR Valve), protects us from this high heat and pressure. So what is the TPR valve, why does it leak, and what should you do about it?

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The pressure relief valve at your water heater can leak. If it does, for the most part it is an easy fix by replacing the valve.

However, if you find the relief valve to continue to leak even after replacement, you should contact a plumber for assistance. A licensed plumber will be able to evaluate your system and decide on installing an expansion tank or other solutions.

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The TPR valve, also called, a pressure relief valve is a specialized valve at your water heater. This valve is typically on the top or side of your water heater.

The valve functions by releasing water if your water heater becomes too pressurized. Since heated water expands, the water heater can become a ticking time bomb if we were to continually build pressure in your water heater.

However, if you do this step and the temperature-pressure relief valve is leaking again, it is most likely a separate issue.

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Typically, the solution to this is through a bladder tank, also named an expansion tank. The expansion tank works by allowing more room for the heated water to expand too. Depending on your location and home, an expansion tank might be required by code.

Luckily for us, the water heater has many safety mechanisms that help protect us from an explosion and the TPR valve is one of them.

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If you completed the step above and you know the relief valve is functioning properly, it might be time to call a plumber.

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Additionally, if a pipe were to go up, water will have to work against gravity to empty. So, it is possible a slow drip of the TPR valve will collect water in the tubing and ultimately rust out the valve rather than empty it to the floor.