Hi All,
Had a problem with the sewer system on the second floor.
Ended up opening up the wall on the first floor and had to cut out a three-foot section of 4" cast iron sewer line. Sealed up the system by installing a 3-foot section of 4" PVC (sch-40) using two 4" Fernco rubbers.
I can't get the Ferncos to seal. The top Fernco weeps just enough to show a moisture ring at the top. The bottom fernco has significant leakage at the bottom. I tightened the clamps in stages with a screwdriver and then switched to a ratchet with 1/4" bit. The Fernco rubbers are simply not sealing on the cast iron.
Ugh. I'm at a loss. How can I seal this beast and still be able to get access in the future???