Brand new hot water tank installed and all the water was leaked out !

Discussion in 'Water Heater Forum, Tanks' started by Koala, Dec 16, 2011.

  1. Koala

    Koala New Member

    Dec 16, 2011
    British Columbia
    A brand new hot water tank was installed at my house today by professionals. I then left the house and 5 hours later came back and the whole water had leaked out in the utility room and of course all over the garage and out from under the garage doors to the drive way.

    Apparently all water was lost. I saw the pressure relieve pipe on the side of the unit was still flowing out water ( weakly ) but I am sure it must have been with enough pressure while I was not home to cover the whole utility room and the garage.

    All faucets ( hot water ) had water in them when yu would open in a bathroom.. but of course no hot water and just cold. I have closed the gas and the water flow ( in and out ) leavers. But am rather anxious as to why when I saw everything was done without a problem , such thing has happened .

    Thank God the utility room is in the garage and lower than other parts of the house . Can any one have any explanations to help me sleep better till I have it looked at ?
  2. johnjh2o1

    johnjh2o1 Plumbing Contractor for 49 years

    Aug 9, 2009
    Two reasons that can cause this. The water was over heated because of a faulty aqua-stat or you have a bad thermal expansion tank.

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  4. jimbo

    jimbo Plumber

    Aug 31, 2004
    San Diego, CA
    The water did not "leak out", as evidenced by the fact that you have water pressure still. Something happened to open the relief valve long enough to send that water all over the garage. This could have been the water getting too hot....that doesn't happen very often, because water heaters have other safety devices. The second possibility is the pressure got too high. You may need an expansion tank, but from the amount of overflow, your static pressure may also be too high to begin with.

    You need to get your plumber to investigate these two things.
  5. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona
    quote; all water was lost. I saw the pressure relieve pipe on the side of the unit was still flowing out water ( weakly )

    ALL THE WATER was not "lost" otherwise you would only have had 50 gallons of water on the floor and water would NOT have been flowing from the T&P valve even "weakly". You had a major discharge of water from the T&P valve, probably because of excessive pressure, but maybe from excessive temperature, but there is no way we can determine which, or why it happened.
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