Can I vent on the vertical stack of a toilet?

Discussion in 'Toilet Forum discussions' started by mikewaggo, Mar 14, 2009.

  1. mikewaggo

    mikewaggo New Member

    Mar 14, 2009
    Last edited: Mar 14, 2009
  2. kingsotall

    kingsotall Plunger/TurdPuncher

    Aug 17, 2008
    Hand copper part cleaned ready to go
    Flagstaff, AZ Sitting on an upside down 5 gallon b
    A lot wrong here buddy.
    Those santees can't be used like that. They need to be wye combos. Santee for the toilet pic can't be used either. Need wye combo.

    Wye combos will need to be at 45 degrees then 1/4" fall on vent pipe.
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  4. Terry

    Terry Administrator Staff Member

    Aug 17, 2004
    Bothell, Washington
    Most layouts, and yours would be easier with the toilet in the middle.
    Having a lav near the tub does not work well.
    Most modern layouts have the toilet in the center, away from the door.
    It's much easier to get into the tub that way too.
    In this layout below, the fittings are wyes below grade, with 45's added to make the complete 90.
    The vent for the toilet would be a wye tipped up a bit, with a 45 and aimed above the tub drain, so when you get to the wall, you can place a long turn 90 to go up.

    Venting for the tub is a wye with 45, or a combo since it horizontal.
    Venting for the lav is a santee, since it's verical.
    Venting for the toilet is a wye since it's horizontal.

    Attached Files:

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