DaveG_NJ
New Member
Hi there. I am replacing a second-floor standing shower and have ripped out the old tile and backer board down to the studs and subfloor. I removed the old (1960's) drain -- a cast-iron affair with integrated trap (full of sludge) and I have 1.5" copper pipe to the T and down to the basement drain and up to the roof vent. I think it best to go 2" down to the basement and have a few questions...
1) What is the technique for removing the old copper pipe from the hidden 1 floor drop? Do I cut in the basement and cut sections in the shower and pull up, maybe a few feet at a time, cut and repeat?
2) How does one insert the new continuous pipe? I figure it's about a 12' length.
3) Do I need to replace the 1.5" vent pipe with 2" or can I leave it as it just a vent and no water would flow through it?
Apologies for the nasty photos - there was rampant leakage in the old shower (bad tile job) and under the liner was a moldy wet mess. The weep holes in the drain were mortared over and the water had nowhere to go.
Thanks!
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