Common Defects With Plastic Drainage Pipes As with most drainage systems the joints and couplings offer little resistance to persistent tree roots, so a root barrier or inhibitor should be used on installation. Poorly prepared pipe ends that are jagged or that have not been lubricated properly can displace the rubber sealing rings when the pipes are jointed, leaving the sealing ring hanging within the pipe and causing the joint seal to fail. Impact damage during installation can affect pipe walls and systems that are not bedded properly will become misshaped and sag. Repairing Defective Underground Plastic Systems Tree root ingress to joints can be repaired using a Cipp drain liner repair method, plastic pipes can be easily pipe burst if there has been significant deformation or you want to increase the pipe size by 5.
Patch liners can be used to seal joints when a sealing ring has been displaced and is hanging from the joint. When plastics pipes have become dipped or have severe impact damage an excavation is often the only way forward.