Sewer liner install, push/pull method. (monorail technique?)

This uses an inversion drum to inflate into the pipe, but also a guide rope to pull it around tricky corners. I think they call it the MONORAIL technique. Regardless, what's cool about this is I was able to close off multiple cracks and missing chunks, and bad separations, and two abandoned branch lines, and all without cutting the concrete open or digging a mess in the area.