Cast iron to PVC

TryTibbs

I have a concrete floor with 2 inches of 4 inch cast iron sticking up. I need to immediately go to a PVC 4 inch sanitary "T". I cant use a coupling as I wont be able to get the drain slope right so I need to adapt the PVC socket to the 4 inch cast. Is there a method of doing this? In other words, I would like to slip the socket over the cast iron. I need to come out of the "T" as close as possible to the floor.

johnnyboy

cut the concrete around the pipe out and properly install a fernco coupler... do it right now, and you wont have to clean up leaking sewage later.

I did have a similar issue where the waste line going through the footer broke off with only about an inch to spare. I secured new pvc with some marine grade putty epoxy, and encased it all with cement... couldn't really think of any other solution besides digging up outside.... nooo thanks. few years later, no issues.

plumber Jim

cut the concrete open and connect onto the cast lower with a nohub band. anything else and you are begging for a leak.

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TryTibbs

Went to the fernco website and found a hubless 4 inch sanitary T.

JDC

Install a 4" street tee with a 4" plastic X cast iron proflex coupling (by fernco). That should get you to where you need to be.