The reading should be between 60 and 80 pounds per square inch.
Water heater pop off valve dripping.
The fix when a closed system exists on the water distribution piping in a home an expansion tank needs to be installed somewhere on the plumbing system.
Why might your water heater s relief valve start leaking.
If you do try to fix it here are the basic steps involved.
Your water heater s relief valve can start leaking for one of two reasons.
Either the valve was triggered to open because of excessive temperature or pressure or the valve itself is faulty.
Verify the proper valve is installed the tprv on a water heater is set to discharge at 150 psi or 210 fahrenheit.
The second reason a water heater relief valve leaks is the water has gotten too hot if the temperature of the water in the water heater reaches above 210 degrees f the relief valve will leak or even blow off this is why the outlet of the relief valve must be piped to about 6 inches from the ground you would not want to get a blast of 210 degree f water in the face.
Screw the meter onto a basement hot water faucet and turn on the faucet all the way.
If a pressure relief valve for a boiler is accidentally installed on a water heater it will leak like crazy from the start.
If the value is close to 150 psi which is the.
My hot water heater is leaking from the pop off valve i have replaced it several times and now i have a new heater and guess what it is leaking through the pop off valve.
First turn off the gas to the water heater or flip the breaker if it s electric.
If it s an electric water heater.
I have had 4 different plumbers check this out they put a new regulator at the water meter turned the temp of the water down replaced every thing in the old heater.
When the pressure builds up enough the t p relief valve on the water heater just does it s job and relieves the excess pressure by leaking a little water.
If a new tprv is properly installed and it still leaks you probably have a pressure problem.
Open the valve at the bottom and the pressure relief valve for a minute to drain a little.
Turn off the power to the leaking water heater.
Close the cold water cut off valve going into the water heater.
These valves may look identical but they re set to go off at 30 psi not 150 psi.
