wierd hot water situation

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by John in T.O., Apr 25, 2005.

  1. John in T.O.

    John in T.O. New Member

    Apr 25, 2005
    I am having trouble with my hot water, although the tank seems to be O.K.
    Temperature varies between hot and luke warm. Today as I was running the hot water in the bathroom tap, I noticed that it was luke warn until I flushed the toilet, then it became hot as the water pressure dropped. Is it possible that cold water is making its way into the hot water lines? Could a faulty shower valve cause this to happen?

    Thanks in advance,

  2. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona

    If you have a malfunctioning hot water circulation system that could be one of the symptoms.
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  4. Mickey

    Mickey New Member

    Apr 24, 2005
    It sounds like your hot and cold water lines may be cross-connected. Cold water is leaking into the hot water lines. It could be a lot of things, it was a washing machine for me.

    Think back to when the problem first started. Did you work on the plumbing or install a new appliance?

    If the pipes are accessible, turn everything on and look for a hot water line that feels cold.
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