We bought an older house that needed some work before we moved in. It has turned into a money pit. The latest problem is with the old cast iron plumbing deteriorating and stopping up the works. Not many options for solving the problem. The house is built on a concrete slab so the usual fix would be to bust up the floor and replace the cast iron with pvc. I have been trying to find info on repairing the line with a liner. Has anyone has anyone had experience with this? Any info would be appreciated.