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Trenchless Pipe Bursting is a technique for replacement of existing sewer and water pipes. The existing pipe, once burst, becomes the guide path for the new pipe being installed.

This technique bursts the old sewer or water pipe and in so doing displaces the fragmented old pipe into the surrounding soil.

This creates a hole of roughly the same dimension as the original. If a larger diameter pipe is to be installed a larger 'expanding cone' is used to increase the size of the hole. Once done, the new pipe is pushed or pulled into position.

                                   NON-DESTRUCTIVE PIPE REHABILITATION

A variation of this method is called 'Pipe Slitting' which breaks the pipe by longitudinal slitting.

Pipe bursting is popular in urban areas where congestion due to existing services sharing the same space under the surface is a problem. Bursting must be used very carefully where sub surface crowding could put other lines at risk due to the pressure of the bursting head. 

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