Our sewer line runs under the concrete basement floor from the back of the house to the front of the house where it exits toward the septic tank. The house is 61 years old. A plumber called to evaluate the line due to sewer gas smells and a constant dripping stream of water entering the septic tank said that I needed to rip out a section of the concrete floor in order to install a new sewer line under the concrete (30 feet front to back).
I have heard that there is a product I could use to line the existing pipe without having to dig up the floor, but I cannot find any information on it. Supposedly it is some type of flexible PVC type tubing used to line old cast iron pipe. The existing pipe is 4".
Do you know of any such product? Is it worth it? Does it work? How expensive? Is it a DIY project? Or should I go with the plumbers advice and rip up the floor?
As to the constant flow of water into the septic, I have turned off all the toilets in the house, but there is still water flowing.