Cast iron flange to J Tech flange

Discussion in 'Toilet Forum discussions' started by JP in VB, Jul 21, 2010.

  1. JP in VB

    JP in VB New Member

    Joined:
    Jul 21, 2010
    Location:
    Virginia Beach, Va.
    Purchased a home built in 1965, noticed one of toilets leaking into crawl space when flushed. Removed toilet and noticed two wax rings had been compressed into the cast iron drain. Looking at using a J Tech flange to raise flange to floor height and reducing the cast diameter to be able to use standard wax rings. The inside diameter of the cast iron pipe is 5", the largest J Tech flange I can find says it fits into a 4" cast pipe. What are my options?

    Thanks for any help!
     
  2. shacko

    shacko Master Plumber-Gas Fitter

    Joined:
    Jan 22, 2006
    Occupation:
    Master Plumber-Gas Fitter
    Location:
    Rosedale, Md
    Thats weird, I can't conceive someone using 5in cast in a house, any chance you can post a picture?
     
  3. Sponsor

    Sponsor Paid Advertisement

     
  4. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    You have a 4" cast iron flange but since the riser does NOT come up to the floor level, you have a 5" opening. I would create a 4" "Dutchman" to insert into it to bring it up to the floor level, and then secure it in place with a lead/oakum joint.
     
Similar Threads: Cast iron
Forum Title Date
Toilet Forum discussions Cast Iron Flange leaded on an ABS Pipe, replacing flange Jan 3, 2015
Toilet Forum discussions Cast Iron Toilet Flange Removal...OR???!!! Dec 2, 2014
Toilet Forum discussions lead pipe to cast iron Apr 1, 2014
Toilet Forum discussions Replacing Cast Iron Flange, Not enough concrete to anchor. Jan 11, 2014
Toilet Forum discussions replacing 2-piece cast iron toilet flange Oct 2, 2013

Share This Page