replacing verticle cast with pvc

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by jim mills, Apr 12, 2014.

  1. jim mills

    jim mills New Member

    Messages:
    141
    Location:
    nebraska
    I have a 75 y/o 4" cast iron stack that services one bathroom group that needs help. The stack measures 24' from basement floor up through roof. I would like to cut the cast & replace the bottom 8', replacing the san tee & lead closet bend, and re configure the tub & lav drains, eliminating the lead drain lines. Question is how can I support the cast while cutting the section out, and will PVC support the weight of the 16' of cast above it? I can use no hub cast, but PVC would sure be easier

    I would like to remove the entire stack, but the walls are finished all the way up through the attic dormer. Plaster & lathe, coves ceilings, plaster moldings. Just a nightmare...
  2. cacher_chick

    cacher_chick Test, Don't Guess!

    Messages:
    3,248
    Location:
    Land of Cheese
    You will need to open the wall up enough to get riser clamps around the stack on each level.
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