1 Answer

  1. Place one wrench on the TPR valve, to prevent the valve from moving (a pipe wrench works well).
  2. Place the other wrench on the drain tube.
  3. Use the first wrench to hold the TPR in place, when you use the other to unscrew the drain pipe.
  4. Cut the new pipe to length.

How do I extend my TPR valve?

Quote from the video:
Quote from Youtube video: You will want to cut your C PVC pipe to length. Once. You have it all together you want to leave about four to six inches from the ground to the bottom of where your pipe ends.

What is a TPR valve extension?





Temperature/pressure-relief or TPR valves are safety devices installed on water heating appliances, such as boilers and domestic water supply heaters. TPRs are designed to automatically release water in the event that pressure or temperature in the water tank exceeds safe levels.

Should the TPR discharge pipe be trapped?

Discharge in such a manner that does not cause personal injury or structural damage. No part of such discharge pipe shall be trapped or subject to freezing.

How do you plumb a water heater pressure relief valve?

Quote from the video:
Quote from Youtube video: Install the new temperature. And pressure relief valve by threading it clockwise into the tank then. Tighten. Apply some sealant to the threads of the discharge tube then thread the tube into the new.

How should pressure relief valves be installed?

Pressure relief valve installation

  1. Mount PRVs in a vertical position, which means upright and with the spindle vertical. …
  2. For flanged valves, be sure to draw the bolts down evenly. …
  3. Avoid overtightening the valve. …
  4. Apply pipe dope to the male threads only.





Can TPR drain to pan?

There may be some jurisdictions that would allow the TPR discharge piping into the pan. The Uniform Plumbing Code has never allowed it to discharge into the pan; it’s not only implied, but actually stated here.

Do pressure relief valves need to be vertical?

Valves installed horizontally



A non-vertical orientation may not provide proper drainage for the valve. A safety valve mounted in a non-vertical orientation may not perform as expected: the seat tightness, operation, and set pressure of the valve may be affected.

Where should pressure relief valve be located?

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.

Where should a relief valve be installed?



Relief valves should be installed as close to the tank as possible and installed on the cold water line. Relief valves don’t have a lot of applications, but where they are used they serve an important purpose.

How do you install a T&P relief valve?

Quote from the video:
Quote from Youtube video: So they don't get scalded detach the run-off tube connected to the T&P valve remove the old TMP valve with a wrench you may need to use a cheater bar or short lengths of metal pipe for extra leverage.

Can you install a PRV upside down?

It’s best to mount pressure relief valves (PRVs) in a vertical position, which means it should be upright and the spindle should be vertical. While you can mount it facing upside down, this is not recommended.