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Thread: 1.5" vent and revent

  1. #1
    DIY Senior Member diyfun's Avatar
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    Default 1.5" vent and revent

    My 1st floor tub drain has a 1.5" vent. I am thinking move and add a vent for my basement counter sink horizontal drain. Can I connect the planned vent to that 1.5" vent? thanks,

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    Forum Admin, Expert Plumber Terry's Avatar
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    You can connect the two vents together at 6" above the highest fixture flood level.


  3. #3
    DIY Senior Member diyfun's Avatar
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    greate! thanks

  4. #4
    Moderator & Master Plumber hj's Avatar
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    quote; You can connect the two vents together at 6" above the highest fixture flood level.

    Technically, the requirement is 6" above the highest flood level OR 42" above the floor whichever is HIGHEST.

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