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Thread: How to attach to this clay pipe?

  1. #1

    Default How to attach to this clay pipe?

    Had a clay elbow break just as the stack was entering the floor.

    I sawed up my floor, took elbow out. Went to use a rubber donut and 3" pvc - damn hub broke on next piece.

    Got out hammer, grinder, etc, had to cut back another 15".

    This is now what it looks like:

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    How do i attach to this? OD is 5", ID is 3.75". I don't care if i use 3" or 4" pvc from this point on. I'm not trying to hammer another donut in and break it again. Do i have to use a shielded fernco, or can i use an unshielded one? What part number, if you know off the top of your head? Or something else altogether?
    Last edited by Terry; 05-05-2011 at 05:54 PM.

  2. #2
    Master Plumber Redwood's Avatar
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    I would use a Fernco 5002 SERIES STRONG BACK (RC) COUPLING

    http://www.fernco.com/plumbing/shiel...s-rc-couplings

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    Last edited by Terry; 05-05-2011 at 05:56 PM.

  3. #3

    Default

    I found one of those at the local store - 4" pvc to 4" clay. Here's my question - the ID of the new PVC is 4". The ID of the old clay pipe is 3.75" or so. That means there's going to be a lip from the new to the old of about 1/8".

    Do i still use the 4" pvc and shielded coupling, or do i go with an unshielded coupling and use 3" pvc, and slide it in the old pipe a couple feet too?

  4. #4

    Default

    Od of clay pipe is 5". Id of shielded fernco is 5 3/8". Id of unshielded fernco is 5 1/8". Which do I get?

  5. #5

    Default

    Gave up bought shielded 4" clay to 3" plastic. No lip will be present.

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