Adding a 'Powder room'

Discussion in 'Massachusetts Plumbing and Gas Code' started by Bob Foley, Oct 23, 2018.

  1. Bob Foley

    Bob Foley New Member

    Joined:
    Oct 18, 2018
    Location:
    New England
    I am looking to add a sink and toilet, small powder room bath to my home. Couple of questions: Is it acceptable to tie into the soil pipe clean out that heads out from the basement? There is a 4" cleanout and my proposal is to put in a 4">>>3" hex bushing, then a sked 80 PVC male adapter, then a WYE or long sweep elbow with a clean out on its 'away from the wall' end to replace the existing cleanout plug. Then up to the floor for the fixtures drains and vents.

    Is is OK to tie into the existing cleanout fitting (which is CI) as described?

    Thanks
     

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  2. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    If it is a cast iron drain system, then the cleanout is 3 1/2" and you will NOT find a bushing, or anything else, that will screw into it.
     
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  4. Bob Foley

    Bob Foley New Member

    Joined:
    Oct 18, 2018
    Location:
    New England
    Is a 3 1/2 inch bushing thread not the same as the thread as the cleanout plug thread?
     
  5. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    Yes, but WHERE are you going to find one? That size has not been made for DECADES, (at least 7 that I know of).
     
  6. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    Keep in mind that MA is one of a few states that requires ANY plumbing, even in your own home, to be done by a licensed plumber. He/she would be able to give you an idea of the best way to do what you wish to do.
     
  7. Bob Foley

    Bob Foley New Member

    Joined:
    Oct 18, 2018
    Location:
    New England
    C5A5C82A-8BFB-4EC3-8466-40C8170FDD32.jpeg 82DC8D1B-381D-443E-B578-40303445C20E.jpeg 491E36D7-E4C8-459D-B14F-0F6175FB493E.jpeg There are a number of suppliers, I got one as shown in the photos (I Hope)
     

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