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Thread: Final word on Air Admittance Valves

  1. #16
    Plumber Cass's Avatar
    Join Date
    Nov 2005


    I hope you did not cause a trap any where in the venting system as it willl defeat the whole purpose of the vent...I have not looked at any drawings but your statment

    "It was actually a lot of fun running all the turns to get it up around the pass-through window!

    Gave me pause to think you may have...

    Incorrect pitch can trap it also...
    Last edited by Cass; 08-15-2009 at 07:40 AM.

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