i have had to change the t/p valve in water heater 4 times this mo. becuase it keeps leaking,i have turned the temp down to luke warm and it still leaks, i do have hard water with high pressure, changed elements and adjusted pressure can turn it to high and have more than enough pressure and can turn it down to nothing and i still hav leaks... can anyone help???
COMMUNITY FORUM
"adjusted pressure can turn it to high and have more than enough pressure.."
It is not clear, but I assume that you are talking about a pressure regulator or pressure reduction valve.
If so that is the problem.
Water is non-compressable and it expands when heated. A pressure regulator acts as a one way valve and since the water can't compress the pressure will increase when it is heated until pressure is high enough to force the safety valve open. Usually only a very small amount of water is release to reduce the pressusre.
This problem is also showing up because a lot of cities are adding anti-syphon or check valves at the meter.
The soltuion is to get an expansion tank and install it. An expansion tank has a air chamber where the water can go to when it expands.
It is not clear, but I assume that you are talking about a pressure regulator or pressure reduction valve.
If so that is the problem.
Water is non-compressable and it expands when heated. A pressure regulator acts as a one way valve and since the water can't compress the pressure will increase when it is heated until pressure is high enough to force the safety valve open. Usually only a very small amount of water is release to reduce the pressusre.
This problem is also showing up because a lot of cities are adding anti-syphon or check valves at the meter.
The soltuion is to get an expansion tank and install it. An expansion tank has a air chamber where the water can go to when it expands.
4 times should have given you a clue the T&P is doing its job relieving pressure.
Have you considered an expansion tank to allow for the increased pressure?
Normally an ASME T&P is rated at 210 deg and or 150 PSI as water is heated it expands thus the pressure builds up.
Replacing a valve 4 times will not cure the problem.
You either lower the incoming pressure to a safe level or install an expansion tank
Have you considered an expansion tank to allow for the increased pressure?
Normally an ASME T&P is rated at 210 deg and or 150 PSI as water is heated it expands thus the pressure builds up.
Replacing a valve 4 times will not cure the problem.
You either lower the incoming pressure to a safe level or install an expansion tank
