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  1. #1
    Join Date
    Feb 2012
    Posts
    1

    Default leaking hot water heater relief valve

    I have a 40 gal propane hot water heater with a constant slow leak from the relief valve (about 1 pint/day). The heater is about 5yrs old. I just replaced the relief valve and the new one also leaks. What could be causing this and how do I fix it?

  2. #2
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,597

    Default Re: leaking hot water heater relief valve

    A drip like you describe from the Temperature & Pressure relief valve can mean that your tank has too much pressure and/or too high temerature inside.

    Set your thermostat lower to reduce the temperature and see if the drip stops.

    If it doesn't, replace the water heater. If it's still under warranty, call the manufacturer's toll free number, but don't expect quick action from them with a 5 year old heater.

  3. #3
    Join Date
    Feb 2010
    Location
    South*East
    Posts
    1,213

    Default Re: leaking hot water heater relief valve

    You need a thermo expansion tank. You must have a PRV ( pressure reducing valve) valve or a check valve at your meter. Was your meter replaced lately?

    John

  4. #4
    Join Date
    Feb 2012
    Posts
    92

    Default Re: leaking hot water heater relief valve

    John is dead on the money need expansion tank or valve and or pressure regulator has failed.

    Ben Franklin Plumbing Of Alpine
    304 Meadowlark Dr, Alpine, UT 84004
    (801) 960-1567 ‎ http://www.benfranklinplumbingalpine.com

  5. #5
    Join Date
    Jul 2009
    Posts
    162

    Default Re: leaking hot water heater relief valve

    ditto john/jim.

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