Cured in Place Pipe (CIPP) Point Repair is a practical and economical alternative to sewer replacement. By repairing damaged sewer pipe, the cured in place method eliminates infiltration and exfiltration, adding to the structural integrity of the pipe.
It is installed as a liner in an existing pipe and cured by the application of heat. Installation of the un-cured liner can be done by the preferred Pulled-in-Place method. When using the Pulled-in-Place method for installation, the liner is drawn into the existing pipe by a winch cable. With the ends of the liner sealed, the liner will be expanded with steam or air pressure for curing the composite. Pressure is maintained until the liner is cured.
SCS uses Formadrain® products which is a non-disruptive method for repairing localized structural problems in an otherwise sound pipe. Using an epoxy resin impregnated fiberglass or felt (depending on requirements), this trenchless (without digging) point repair method rehabilitates damaged pipe with diameters from 100mm-1200mm. The result is a structurally sound, long lasting and economical alternative to other rehabilitation solutions.
Point repairs are generally completed in a few hours without disrupting the flow in the line. Access can be gained through the closest manhole where the impregnated fiberglass "tube" is moved into place under constant visual monitoring by an experienced trained, professional crew. When in place, the point repair is pressed tightly against the inside wall of the host pipe using steam and then cured in place. Once steam is applied, a cured-in-place liner forms a thin, high strength, protective wall around the inside of a deteriorating pipe.
Point Repairs are most effective in sewers with the structural defects due to localized settling, excess loading conditions, an offset joint, corrosion or poor initial construction. While point repairs may stop infiltration if the pipe is already leaking at the location of the repair, it must be understood that they cannot solve infiltration problems throughout the sewer. Groundwater will simply find another location to enter the pipe. The only way to eliminate infiltration is to seal every joint in each mainline section. Grouting all joints in addition to point repairs for structural cracks and offset joints ensures years of useful life for your pipeline.
