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    ADFman's Avatar
    ADFman Posts: 2, Reputation: 1
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    #1

    Mar 15, 2007, 07:25 PM
    Venting/Drainage a new Bathtub into an existing sunk in shower
    Okay, Basically. The sunk-in shower is obviously lower than the bath tub. And I wish to connect the new drain from the tub to the existing 2" drain from the shower. My question is: How would I go about venting (if needed) and connecting the new tub that is 4' away from the existing drain, Without, having any suction or backflow to the P-trap of the shower when we drain the bathtub?
    doug238's Avatar
    doug238 Posts: 1,560, Reputation: 62
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    #2

    Mar 15, 2007, 08:02 PM
    The ideal way is to open the floor and simply move the trap to the proper place for the tub. 2" can travel up to 8 feet total and 1 1/2" can travel 5 feet from the vent. You probably have a 2" line, maintain that with a 2" trap and 1 1/2" riser
    ADFman's Avatar
    ADFman Posts: 2, Reputation: 1
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    #3

    Mar 16, 2007, 05:17 PM
    Thanks Doug.
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