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.
Water heater pop off valve dripping.
Turn off the power to the leaking water heater.
Either the valve was triggered to open because of excessive temperature or pressure or the valve itself is faulty.
These valves may look identical but they re set to go off at 30 psi not 150 psi.
Screw the meter onto a basement hot water faucet and turn on the faucet all the way.
The reading should be between 60 and 80 pounds per square inch.
First turn off the gas to the water heater or flip the breaker if it s electric.
If it s an electric water heater.
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.
If a new tprv is properly installed and it still leaks you probably have a pressure problem.
Verify the proper valve is installed the tprv on a water heater is set to discharge at 150 psi or 210 fahrenheit.
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.
If a pressure relief valve for a boiler is accidentally installed on a water heater it will leak like crazy from the start.
If you do try to fix it here are the basic steps involved.
If it s a gas water heater it will have a dial or an on off switch near the spot where the gas line connects.
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.
These numbers will be printed right on the valve or on a tag attached to the.
If the value is close to 150 psi which is the.
Why might your water heater s relief valve start leaking.
Your water heater s relief valve can start leaking for one of two reasons.
In the first case the valve will drain water out of the discharge pipe as explained above.