|Posted by hj on December 06, 1998 at 10:37:04:|
|In response to Re: Water Heater T&P valve discharge|
Check your water pressure and see if it is in the 130 to 140 pound range.If it is anywhere near that then the pressure could increase whenever a faucet or valve is closed and cause the valve to open.
: I have a 6 year old house/water heater (80 gallon set at 120 degrees). Recently the T&P valve started leaking once or twice a week. Since it doesn't leak constantly, I had a plumber look at it and he replaced the T&P valve saying that it was "stuck open". A couple of days later, the valve discharged again.
: I replaced the thermostat a couple of years ago and since there isn't a pattern as to when the valve discharges, I don't know how to check to see if the thermostat is sticking.
: A friend suggested that I moght need a thermal expansion tank, but my house does not have a pressure reducing system or a blackflow preventor. I'm not certain whether the water company has any such devices.
: Any advice?
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