A Patch Repair is a great cost-effective alternative solution to drain re-lining, as only a small section of drain/pipe needs repairing. This method is used to seal a length of pipe which has specific points that require a patch repair for example: fractures, cracks, displaced joints, small holes or infiltration, this will also help to minimise any on site disruptive to civil works.
The process is similar to a pipe re-lining however a patch repair is only 500mm - 1000mm in length and the balloon process is much quicker and stronger. A structural liner is covered in resin and then wrapped securely around an inflatable tube. The tube is then pushed into the required position in the pipe covering the faulty area. The tube is then inflated to the shape of the pipe for approximately 30 to 60 minutes while the resin hardens. The tube is then deflated and dragged back out of the pipe leaving the patch repair secured perfectly against the pipe wall. Finally, a CCTV survey is carried out to verify the completion the patch repair.
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