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Thread: Waste Stack

  1. 04-16-2010, 07:24 PM #1
    ptomt77
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    Default Waste Stack

    2009 International Plumbing Code P3109.1 Waste Stack Vent Permitted

    The stack shall not receive the discharge of water closets or urinals.

    What does this mean?

    I thought the waste stack discharged all waste
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  2. 04-16-2010, 08:09 PM #2
    jc60618
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    Water closets and urinals must drain into soil stacks.
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  3. 04-17-2010, 08:08 AM #3
    hj
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    The statement says it is referring to a "waste stack vent", and a vent stack SHALL not have toilets or urinals connected to it, but you can use it to wet vent by connecting a sink to the vent. However, I HAVE connected urinals to toilet vents when the two are back to back.
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  4. 05-13-2010, 12:31 PM #4
    ptomt77
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    Thank you very much
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