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Thread: flushing a Moen posi-temp valve

  1. #1
    Software Engineer Ross Hunt's Avatar
    Join Date
    Sep 2007
    Bellevue, WA

    Default flushing a Moen posi-temp valve

    I am remodeling two bathrooms in my house. I just installed a Moen posi-temp (with stops) valve in one of them. The installation instructions recommended removing the cartridge and flushing the valve before running water with the cartridge installed. Even though I had the stop tube in place, it was still difficult to get the water to just go in the tub and prevent the water from leaking around the valve and into the wall behind the valve. I have another valve to install in the other bathroom. Any suggestions as to how to accomplish this without leaking water all over the place?

  2. #2
    Master Plumber master plumber mark's Avatar
    Join Date
    Feb 2005
    indianapolis indiana - land of the free, home of the brave....
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    Talking leave it alone

    moen posi temp are mean to fool with
    even when they are new...

    if you must do that I guess you could find a slightly larger
    pipe than the shaft comming outof the wall
    like a 1 1/2 pvc tail piece to funnel the water
    into the tub....

    I would probably not mess with it if it were mine..


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