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Unread 01-10-2021, 06:16 PM   #4
jadnashua
Veteran DIYer- Schluterville Graduate

STAR Senior Contributor

 
Join Date: Jul 2004
Location: Nashua, NH
Posts: 14,225
There's one possibility that may work for you without tearing things out completely.

Is the end of that cast iron a hub?

Fernco, and probably some others, make rubber donuts that are designed to sit in a hub, and allow a pipe to seal inside it. https://www.fernco.com/plumbing/donuts-o-rings/donuts
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Jim DeBruycker
Not a pro, multiple Schluter Workshops (Schluterville and 2013 and 2014 at Schluter Headquarters), Mapei Training 2014, Laticrete Workshop 2014, Custom Building Products Workshop 2015, and Longtime Forum Participant.
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