Master Brian
DIY Senior Member
Currently I have 4" cast iron pipe running from inside out the house. I am noticing a bit of a drip stain on the inside wall where the cast exits the wall, so I know the time is coming to replace this cast iron.
My question is if I take out the 4" cast and replace with 4" PVC what do I use to seal between my cinderblock basement wall and the earth. The plumbing exits about 3-4' below grade.
My question is if I take out the 4" cast and replace with 4" PVC what do I use to seal between my cinderblock basement wall and the earth. The plumbing exits about 3-4' below grade.