does cast rust shut?
trying to help my sons house out a bit. remodeling bath room off master bedroom. took ugly pink tile off,,,exposed galvinized drain pipe leaking where screwed into cast iron stack.
now replacing with plastic pipe BUI iron was barely screwed into cast and inside cast part it is completely plugged on both sides. didnt know cast plugged that hard,,chipping with hammer and chisel barely touches it
Does the cast clog that hard or galvinized 1 1/2" cause that? Its a 3" stack with a sink drain out both sides...if I put new walls in with new wall tile I have zero access in case it rusts shut again.
This pipe has more of a tee in it,,,a shoulder in the 1 1/2" tees to rust shut,,,or is the only permanent cure a new plastic stack from basement floor on up???????