Cutting cast iron plumbing can be intimidating, but this step-by-step guide shows how to do it cleanly, safely, and efficiently. Featuring proper tool selection—like chain cutters or angle ...

The cast iron lateral line ... chunks of yuck and get the pipe back in shape. He did a little bit of robo-spelunking, too, as you do. And no, this isn’t the only sewer bot we’ve ever featured.