This process starts by digging two holes, one where the sewer exits the building and the other at either the property line or in the street where it connects to the mainline. A steel cable is then threaded through the old sewer pipe and a hardened steel bursting head is attached to one end of the cable. The new polyethylene pipe is then attached to the back of the bursting head. At the other end the hydraulic system is set up which pulls the cable. Once the system has been set up and turned on the operator uses a remote control to "pull" the cable with the head and pipe attached down into the hole at the side of the house. It then pulls the new HDPE or High Density Polyethylene Pipe through the old pipe breaking it and pushing the pieces out into the surrounding soil. The new pipe gets pulled all the way to the exit hole where the connections are made, it is inspected and then the holes filled in. HDPE pipe has an estimated life of well over two hundred years.
Pipe Bursting
See demo below
Trenchless Pipe Repair p2
