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Thread: Spa tub vent critical distance

  1. #1
    DIY Junior Member fecollier's Avatar
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    Jan 2010
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    Default Spa tub vent critical distance

    I am doing the DWV on a house I am building and can't figure the best way to vent the spa tub. The pic shows the main drain line in red and the proposed lav & tub line (2" ) in blue. My trap is more than 5 feet from the wall where I want the vent line and I know I can go horizontal with it below. Any ideas on how to vent this?
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  2. #2
    Moderator & Master Plumber hj's Avatar
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    We would continue the line to the back wall, run the vent up there, and arm back to the "P" trap from that point.

  3. #3
    DIY Junior Member fecollier's Avatar
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  4. #4
    Moderator & Master Plumber hj's Avatar
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    You have the right idea, but I would not run the pipes exactly the way you show them.

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