I had a plumber run a camera down my sewage line that starts in the laundry room, is fed by the kitchen sink, and runs at an angle all the way across the house to the main line and we found a hole in the line pretty much in the dead center under my slab foundation. I was quoted $5k to get it fixed because they would have to dig about 23' to be able to get to it. One fear I have is that even if that get's fixed there could be other damage further on down the line.
Are there any alternative ways to get to the line? My Uncle wants to jack hammer through the slab to get to it but I'm not so sure that's good for the foundation of the house. The line is a 2" line by the way. Also would it make sense that if the integrity of this whole line is in question would pipe bursting possibly be a solution? Or can this not be done under foundations?
Another question that I have is that is it possible that a shift in the foundation over time would cause that line to level out and cause build up? I've snaked that line myself before, I can tell when I hit the hole in the line but if I jimmy it enough it will pass that hole and loosen up whatever is causing the slow drain but this is always a temporary fix.