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    jamieo29's Avatar
    jamieo29 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Apr 18, 2008, 04:53 PM
    Extending pressure relief valve
    We are selling our house and the buyers did the home inspection. We have been told that the extending pressure relief valve to exterior of garage has a slight leak from pressure relief valve. What is that and how much might that run me in Columbia S.C. to fix?
    jamieo29
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #2

    Apr 18, 2008, 05:40 PM
    Hi Jamie:

    A few questions before I can offer answers.

    I am figuring that this is a T&P valve (temperature and pressure relief valve associated with a WATER HEATER, Or is this a pressure relief valve from a HEATING (BOILER) SYSTEM?).

    Also, do you have a sprinkler system or a recirculating hot water line.. I am wondering if have expansion issues?

    Answer those questions... see what we can do.

    Talk soon... Mark

    .
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #3

    Apr 19, 2008, 06:51 AM
    Two solutions come to mind. 1) If Massplumbers question,
    do you have a sprinkler system or a recirculating hot water line?
    ( or a check valve/ backflow preventer)is yes then you need a expansion tank installed on the water heaters cold water supply. **or** 2) There may simply be a small piece of trash caught under the seat of the T&P valve. Jiggle the handle and see if the leak doesn't stop.
    If all else fails then just replace the valve. Good luck, Tom
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