Help with DWV layout for new bathroom - please review layout

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by ivan1234, Dec 9, 2013.

  1. ivan1234

    ivan1234 New Member

    Messages:
    1
    Location:
    MD
    I am converting a half bath to a full bath. The bathroom will contain a shower, toilet, and lavatory sink. The toilet will be in between the shower and lavatory.

    I have started running my drain pipes (without gluing) and want to make sure that what I am planning will work properly.

    I have attached a few photos. Can you please review?

    I would like to use a wye connection on the vertical section of the closet arm to connect the drain for the lavatory. Is this allowed? There will be a vent installed on the vertical section of the closet arm between the toilet flange (not shown) and the wye connection for the lavatory (this is the 2 in pipe running from the tee to the wall). Will this work? The lavatory will have its own vent.

    Thanks!

    photo 3.JPG photo 2.JPG photo 1.JPG
  2. cacher_chick

    cacher_chick Test, Don't Guess!

    Messages:
    3,260
    Location:
    Land of Cheese
    No drain below grade should be smaller than 2" pipe.
    Waste from the water closet cannot pass an un-vented fixture connection.
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