These pictures show what happens when a cast iron drain pipe meets the ravages of time. The yellow objects on the right are the old cast iron pipes removed from below the foundation of one of my homeowner's living room. For several years the drain pipe had been backing up from time-to-time and needed to be cleared. After sending a camera down the pipe to search for the cause of the chronic clogs, the deterioration of the pipe was evident. The decision was made to replace the pipe with a new PVC drain.
After sealing off the area to prevent dust from entering the rest of the home, the slab was cut, the old pipes removed and the replacement PVC drain was put in place. Problem solved.
Fortunately for most of us, cast iron drain pipes have not been used in our area for years. So the next time you flush your toilet, appreciate the wonders of the PVC pipe!