New bathroom remodel advice

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by JSPA, May 22, 2020 at 5:51 PM.

  1. JSPA

    JSPA New Member

    Joined:
    Friday
    Location:
    Pennsylvania
    I am working on remodeling 2 back-to-back bathrooms in a 1950's home. I put together the attached drawing and wanted to run it past the pros here before final plumbing so I get it right the first time.

    A couple notes not on drawing:
    1. Plan is to cut old copper 3" horizontal before first toilet connection and convert to PVC with Fernco.
    2. The vent is the only one on house (2.5 bathrooms and typical stuff like laundry/kitchen/etc)

    I have been using this forum for years and really appreciate the great discussion and assistance given. First time posting so if more info is needed I can try to supply. Thanks.
     

    Attached Files:

  2. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    Two or more lavs will need 2"
    They make a shielded coupling for copper to PVC. That's the one with a metal wrap to prevent the pipes from shifting, which does happen with an all rubber coupling.
    Your tub and shower are not vented correctly. I can't tell if the lavs are either from the drawing.
     
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  4. JSPA

    JSPA New Member

    Joined:
    Friday
    Location:
    Pennsylvania
    What additional info would be needed to determine Lav venting? I was not planning any changes on the tub/shower fixtures because their connection to the main is not visible, so I have no way to determine what their connections look like. For what it's worth, I have never had flow issues with those two fixtures.
     
  5. JSPA

    JSPA New Member

    Joined:
    Friday
    Location:
    Pennsylvania
    So I revamped my layout a bit based on your feedback and other posts about double vanities. I also picked up the copper to PVC shielded coupling you mentioned. Thanks.
     

    Attached Files:

  6. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    I do not know what "2 way T Y" is, since I have never seen one. Your tub, shower, and right hand toilets are not vented.
     
  7. JSPA

    JSPA New Member

    Joined:
    Friday
    Location:
    Pennsylvania
    The picture below is what I was going for on the double tee-wye (sorry, unsure of exact name for fitting). The left sink would then tie in to the vertical below that double fitting.

    What makes the right hand toilets/tub/shower not considered "wet-vented" from the 3" drain line? I was basing the layout on the attached from a book put out by the International Code Council about venting procedures. Any suggestions on what I am missing?
    [​IMG]
     

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