Still_Learning
New Member
Here’s a question I can’t seem to find an answer to. About a year ago, we had a 20’ section of cast iron (main line) lined with an epoxy liner because I didn’t want to jack out and replace full line.
Now the missus is thinking about adding a powder room that’s drain would tie in about midway down the lined section.
I’ve heard once you line a pipe you shouldn’t (can’t?) disturb it to make modifications, but is that true or is the risk just voiding the warranty?
It seems like if you were to excavate the small section and cut through the cast iron with a carbide blade, it would also cut cleanly through the liner and then you would just add a banded coupling on each side to tie in the new drain.
What am I missing?
Now the missus is thinking about adding a powder room that’s drain would tie in about midway down the lined section.
I’ve heard once you line a pipe you shouldn’t (can’t?) disturb it to make modifications, but is that true or is the risk just voiding the warranty?
It seems like if you were to excavate the small section and cut through the cast iron with a carbide blade, it would also cut cleanly through the liner and then you would just add a banded coupling on each side to tie in the new drain.
What am I missing?