Back to back toilets

Discussion in 'Toilet Forum discussions' started by JimBt, Sep 30, 2008.

  1. JimBt

    JimBt New Member

    Joined:
    Sep 30, 2008
    I have an old house and would like to add a bathroom. If possible I`d like to create the new bathroom back to back with the existing one, sharing the wet wall. My question is how to install a toilet back to back with the existing one. Are there fittings available for 2 toilets on the same stack. My old stack is cast iron so I`m going to have to cut it off and install PVC. The venting shouldn`t be a problem but I can`t figure out the main connection.

    Any help and stories of experience would be appreciated.
     
  2. psolutions

    psolutions New Member

    Joined:
    Sep 30, 2008
    Location:
    South Carolina
    Plumbing Toilet

    Is your home on a crawl space or a slab?
     
  3. Sponsor

    Sponsor Paid Advertisement

     
  4. JimBt

    JimBt New Member

    Joined:
    Sep 30, 2008
    The bathroom is on the second floor and the new one will be too.
     
  5. Basement_Lurker

    Basement_Lurker One who lurks

    Joined:
    Jun 21, 2007
    Occupation:
    I smash things and demand money.
    Location:
    Victoria, BC
    You need to use a double fixture fitting, and not a sanitary cross. And you need to be aware of the maximum length for a toilet arm allowed by your code.
     
  6. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    The new toilets do not work as well with fixture crosses as the old ones.
    The double santees do not work at all.

    With the quicker flushing toilets, it's important that they are vented and plumbed in such a way that the gush of water from one does not go up the other arm to the other toilet.
     
Similar Threads: toilets
Forum Title Date
Toilet Forum discussions Up Flush Toilets Tuesday at 2:23 PM
Toilet Forum discussions toilets for dental office Apr 11, 2015
Toilet Forum discussions Considering replacing 3 Walsan wall-mount toilets ... Mar 29, 2015
Toilet Forum discussions After what feels like 100 hours researching toilets, I give up. UPDATE at end 3/18/15 Mar 8, 2015
Toilet Forum discussions Need 3 new toilets: Toto Ultramax II or American Standard options Feb 20, 2015

Share This Page