- Posts: 437
- GoldenHas donated $ to the upkeep of GPL
1) Carefully chip the concrete away from around the cast iron to expose the failed section.
2) Rubber boots are made to facilitate transitions from one type of material to another. A Fernco. It tightens with SS screw clamps. Big hose clamps, in other words.
I have seen cast iron no- hub pipe occasionally used as sanitary (underground) pipe but PVC is so much more slippery. As for sanitary risers cast is nice and I have had it used as vent in certain return air plenums on commercial jobs. The thing with cast iron is weight, labor $, that it doesn’t get used much any more.