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

    Nov 18, 2011, 05:13 AM
    Attic bathroom venting ireland?
    I have Two Bathrooms upstairs, the venting is joining in the attic and going out one pipe. Could this cause contamination down the line and smell into the other bathroom?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Nov 18, 2011, 06:42 AM
    Yes if there is no backflow damper in each fan duct.
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