We discovered that we were getting water leaking out of the pressure relief
valve/pipe... about a cup per day.
I called in a plumber and they suggested that our pressure in the tank was
really high. They changed a main feed from outside and also changed the
pressure valve. This was fine for about 2 weeks. We are now seeing water
coming out of the valve again.
What else should be checked or what can be suspect? The water heater is 9
years old... is it that I need a whole new one?
Any advice would be great!
Did the plumber actually measure the pressure with a gauge?
Are you on city water or a well?
Is there a Pressure Reducing Valve on the supply from the city water main?
Do your neighbors have PRV's?
Do you have a thermal expansion tank?( separate small tank connected to the
cold water pipe near the water heater)
Explain what "main feed" they changed.
He measured it and said it was above 100 ????
I am on city water. I live in an association and we all have similar feeds
into our houses
I am not sure if there is a pressure reducing valve from the main... I know
he also replaced something in our closet that supposedly came in from the
I do not think we have a thermal expansion tank....
Your thoughts and thanks for your time!
On 12/11/03 "Whitespc" email@example.com writes in part:
Read this to help you understand the finer points of thermal expansion.
It may work as a link, if not, copy and past it into your browser.
The fact that you've never had the problem before means absolutley squat!! The
only thing that matters is what are the current conditions.
I have received great input... thank you.
The job is done. An expansion tank was now installed and I believe this is
what was needed from the start.
So now, a new pressure regulator, a pressure relief, and an expansion tank
were installed..... .not many other parts left. I am now over $400 in the
red to fix a small leak. I am not sure this went exactly as it should have.
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