What’s hiding inside your old cast iron drain pipes? We recently opened the plumbing in an older home and found severely deteriorated cast iron drain piping—including heavy internal corrosion and a cracked section of pipe. The damaged cast iron was removed and replaced with new PVC drain piping for a dependable long-term repair. If you live in an older home and are dealing with recurring clogs, slow drains, sewer odors or unexplained leaks, the problem may be more than a s