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

    Nov 8, 2007, 04:16 AM
    Why is my incoming cold looped over to the outgoing hot right above my water heater
    I recently had a house built. The plumber my contractor use plumed the incoming cold so it loops over and mixes with the outgoing hot right above my water heater. I have never seen this done before. Is this common? Why is it plumbed that way?
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
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    #2

    Nov 8, 2007, 04:26 AM
    If there is a big bulgy thing with a temperature dial, it is an anti scald valve. It mixes in enough cold to prevent injuries from excessively hot water.
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