Dave, I am a maintenance supervisor at a State Park Complex in Pa. & we had a leak in a terracotta sewer line in the basement of our Lodge. I did a lot of research on pipe relining & decided this was the way to go since I didn't have to tear up carpet & bust up cement. I hired a reputable company to do the work & the relining process worked beautiful. They let the epoxy set for 3 hours, & then deflated the long air tube that inflates to hold the epoxy to the pipe walls until it drys. They next inserted a camera to take a look at the repair & when the camera went past the repair area, I almost crapped! The terracotta pipe was all busted up into a million pieces. It seems the leak we had was washing all the dirt from the outside of the pipe area & when they put the air to the tube, there was nothing backing up the outside of the pipe. & it cracked. The repair was about 20 feet long, & cost $4500 big ones. We ended up pulling up the carpet & cutting up the concrete & tile floor anyway. They did televise the pipe before beginning the process, But the pipe must have had hairlines cracks in it that didn't show up. Not sure I would have this done again unless I knew the pipe was solid & in good condition!
Live & learn I guess........Ed
1968 GT VERT ROYAL MAROON J CODE
OWNED FOR 43 years