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Thread: Cast Iron Tips and Tricks

  1. #1
    DIY Junior Member JTlikestobuild's Avatar
    Join Date
    Feb 2013
    Vancouver BC

    Default Cast Iron Tips and Tricks


    I'm doing a home reno.

    All the in ground and under slab DVW pipes where done with ABC plastic. With the ABS there was no movement between the fitting and the overlap of the hub fittings provided larger seal area than the clamp does with a no hub coupling.

    The couplings I'm using are Anaco/Husky (neoprene couplings, stainless band, 2 clamps). All the pipe is cut square but there's still flex and the neoprene over the rough cast iron doesn't seam to be the best way to provide a seal that should last 30-40 years.

    I've been tempted to change over to heavy duty no hub couplings at least on the 4".

    With each fitting I install I wonder if there is a trick I'm missing.

    Thanks for the help

  2. #2
    In the Trades Tom Sawyer's Avatar
    Join Date
    Nov 2010


    You need ABS/PVC to Cast iron mission couplings or the equivalent.
    [B]No, plumbing ain't rocket science. Unlike rocket science, plumbing requires a license[B]

  3. #3
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Cave Creek, Arizona


    The metal band prevents side to side movement, and the pipes should be pushed together so they cannot "pull" out of the coupling.
    Licensed residential and commercial plumber

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