Cast Iron or PVC Flange?

Discussion in 'Toilet Forum discussions' started by BSwanson, May 23, 2006.

  1. BSwanson

    BSwanson New Member

    May 12, 2006
    New York
    I need to replace two flanges. Is PVC better than Cast? Are they had to get in the cast pipe?
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    The strongest one would be a cast iron one leaded into th eold stand pipe. There are some internally expandable versions that basically clamp onto the pipe that would work. Probably other of the pros would have some thoughts.
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  4. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona

    The couple of insertable ones I have tried to use on cast iron, had to be trimmed, then beat into the pipe, and even then they would not go all the way down to the floor.
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