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Thread: replacing heat trap nipples in water heater

  1. #1
    DIY Junior Member texas musician's Avatar
    Join Date
    Dec 2009
    san antonio

    Default replacing heat trap nipples in water heater

    I was told by the resident expert at Lowe's to replace the heat trap nipples in my water heater to increase water flow. My current htn's plastic center looks as though it's been melted and I can see why a small amount of water gets through.

    I used channel locks pliars and tried to turn counter-clockwise but no budge... I don't want to ruin the threads in case they don't come out so I am waiting to see if someone can rescue me before I kill the thing....

    help needed in SA

  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Bothell, Washington
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    They will come out, you may need a pipe wrench.

    They can be in really tight.
    I messed up my wrist one year with pliers on a water heater.

  3. #3
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Cave Creek, Arizona

    Default Htn

    I just extract the plastic heat trap device from them. Otherwise, screw a fitting onto the threads so the nipple does not distort, then use a large wrench to unscrew the nipple. Replace it with a brass nipple, not a galvanized one.


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