There are numerous possible reasons your water heater s pressure relief valve leaks.
Water heater leaking water from relief valve.
The relief valve is working the way it s intended and water drained to reduce the pressure inside the tank.
Both circumstances should be taken very seriously.
In the first case the valve will drain water out of the discharge pipe as explained above.
1 either the water pressure inside the tank is too high 2 the water temperature is too high 3 the t p valve hasn t been used in a few years 4 the wrong t p valve was installed or 5 the t p valve itself has failed.
If the relief valve is needed frequently that means there s an issue with.
Either the valve was triggered to open because of excessive temperature or pressure or the valve itself is faulty.
Your water heater s relief valve can start leaking for one of two reasons.
If it leaks then it can do quite a bit of damage in just a short amount of time with just the water that is leaked.
Reasons for water discharging from the relief valve.
A water heater pressure relief valve is what prevents the levels of pressure from your water heater from getting to dangerous levels.
There s a problem with the valve such as a faulty seal and the water is unintentionally leaking.
Usually what causes a leak is the minerals in the water that will deposit on your valve.