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Thread: What causes a tank to leak and then not leak

  1. #1
    DIY Senior Member chefwong's Avatar
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    Default What causes a tank to leak and then not leak

    Here is the synopsis -

    Yesterday - Slight Leak
    Mopped Up

    Today - Leaking like a sieve
    I had to mop up every 10 minutes as we do not have a drain in the location

    However, I turned off the pilot and also the inlet feed from 1 PM till 10:30 PM.
    I had the pilot turned back on since 10 PM and as of not, it's not leaking at all...

    I have a scheduled appt to have the boiler replace. Thoughts, suggestions, etc ? Should I keep this old 40 year dinosaur or replace it with the one that's coming it. Kenmore (AO Conservationist ) model ...... Will it be much more energy efficient ?

  2. #2
    Plumber jimbo's Avatar
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    Default

    You didn't mention exactly where the water was coming from. If it is coming out of the relief valve, the cause could be too-high pressure in the house, and nothing at all wrong with the WH.

  3. #3
    Moderator & Master Plumber hj's Avatar
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    Default leak

    Pilot on at 10:00, but did you also turn on the water feed? If the leak is a small one, then it could closed over if the pressure is off to give it a chance to "skin" over.

  4. #4
    DIY Senior Member chefwong's Avatar
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    I could not pinpoint it but it was coming from underneath the unit.

    I did notice that it would not leak if the cold water was off.

    I turned the pilot on at 10PM and the water feed at 10:30.
    Regardless, I'm thinking it's just crud that has skinned over and I should replace it.......it was leaking pretty bad before.

    I'm not sure what is generally covered under a normal install but I assume the plumber always needs to end up reworking the pipes a little, to get the fittings to match the boiler.

    I'm thinking I may just run out early tomorrow, pick up some ball valves and some fittings.......and finally replace/add stop valves. I've always had to turn the main since there is not a stop valve that stop water to the 1st floor and above......just recently had the kitchen done, and what a PITA turning on/off the main.

  5. #5
    Plumber plumber1's Avatar
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    Aug 2005
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    Default

    When your out, I think you should pick up a water heater too.....

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