ast-iron pipe was used for drain lines in older homes. Cast-iron is durable but it rusts and develops leaks over time. It has been replaced by PVC in new construction because PVC is lighter, cheaper and easier to work with. Plumbers also use PVC when making repairs to cast-iron pipe. Repairing cast-iron requires basic tools and mechanical skill. It is a do-it-yourself project that saves a homeowner the cost of paying a professional.
Dig a hole large enough to allow easy access to the damaged section of pipe. Mark cut lines on each side of the damaged pipe. Cut by firmly holding the saw blade against the pipe and sawing until the pipe is completely severed.
Slide the banded couplings over the neoprene sleeves and tighten the screw clamps. Refill the hole.