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    kca404's Avatar
    kca404 Posts: 1, Reputation: 1
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    #1

    Sep 23, 2013, 10:03 AM
    Tankless water heater
    I have a takagi tankless system. My average water bill is 80 dollars uuntil last month it was 150.00. I checked and the drainline for the tankless system is pouring hot water out in the drain?
    medic-dan's Avatar
    medic-dan Posts: 321, Reputation: 23
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    #2

    Sep 23, 2013, 02:06 PM
    It sounds like the pressure relief valve is leaking. It may have just failed. Turn off the heater and shut the water off. You'll need to change the valve or call a plumber.
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