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Thread: underslab bathroom

  1. #1

    Default underslab bathroom

    Hi guys, need some info or run by u guys my plan for an add on for a single bath and kitchen sink. Ill start at end of run- 3" vtr w. 3" vent ell,3x1.5 wye on horz. to 1.5" trap for tub,3x2 wye on hrz. for 2" floor drn. w. trap,3x3 wye w. 1/8 bend on hrz. to 3"ell up to wc,3x2 sant. tee vert. for washer sp,3x2 sant tee vert. for lav.,about 14 feet down stream back to back 1/8 bends to offset drain to get 3x1.5" sant tee vert. in block wall to catch kitchen sink drain and 1.5" vtr . All on 1/4" pf slope out wall to 3x4 red. to 4" main co in front yard about 4' from front wall.My diggers dug my ditch all 17" deep and trap weir to top of slab will be 20",looks like my lav. vent will be about 6'3" from my 3"vtr,this is my concern.Its my first underslab job and I only get one shot so I dont want to cover it or call inspector until im sure. Any help???

  2. #2
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
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    Cave Creek, Arizona
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    25,633

    Default Dwv

    If we wanted to take the time to draw out what we think you are describing, we might still get it wrong. Give us a drawing of the room, with the fixture locations and the way you want to install the piping, along with vent locations. Then MAYBE, we will be able to give some advice.

  3. #3

    Default underslab bathroom

    ok, thanks

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