

| | NATIONAL LINER® INSTALLTION PROCESS | | | Sewers fail due to various defects, as illustrated below. Elimination of these defects will extend the sewer life without the need forcostly excavation. | | |  | | | The resin impregnated liner is inverted into the host pipe using water or airto hold the liner tight against the host pipe. The liner is then heatcured, converting it into a strong new pipe. | | |  | | | After the pipe is cured, services are reconnected using a remote controlledrobotic cutter. | | |  |
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