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Thread: DWV Vent: Sanitory Tee at 45 Degrees

  1. #1
    DIY Senior Member seaneys's Avatar
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    May 2007
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    Chicago Suburbs
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    Default DWV Vent: Sanitory Tee at 45 Degrees

    I would like to make a few obvious improvements to my DWV before the inspector comes. I actually had goofed and put in a horizontal vent line in one place. The previous posts on this site made me aware of the error....

    I would like to install a sanitary tee rolled 45 degrees as a vent off of a horizontal drain. The vent line rises vertically from a street 45 degree bend attached to the the sanitary tee.

    Is this an advisable (code worthy) design? I've been trying avoid using sanitary tees (I find their use confusing), but I am tight on vertical clearance.

    Thanks!
    Steve

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    Last edited by seaneys; 03-22-2008 at 06:25 PM. Reason: Adding a picture

  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
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    Aug 2004
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    Bothell, Washington
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    In Washington State, they would want a wye or combo fitting there.
    In some cases, I would wye off, and then turn up through the floor with a waste 90 el, making sure the vent line would be above the flow line of the waste line.

  3. #3
    Plumber krow's Avatar
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    Feb 2008
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    Ontario, Canada
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    In Canada, That layout is acceptable as long as you don't have anything draining into that branch. As long as its being used as a dry vent

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