There used to be a time when repair of buried pipe always involved digging out old pipes, installing new pipe sections, and restoring the damage to the floor, ground or garden. But advances in pipe repair technology have made it possible to repair pipes without disturbing the ground the pipes are buried in, or digging up a much smaller trench at each end. Trenchless pipe repair is what it is called, and it is a pipe repair technique more and more people are considering. Since trenchless pipe repair cost less than pipe replacement, its popularity continues to grow.
There are quite a few methods used in the trenchless repair of pipes, all of them proven reliable. Among them are:
a) Pipe bursting is a method where only two small holes were dug on either end of pipe to be replaced. First the pipe internal surfaces are cleaned, then a winch pulls an expanding head to pull out the old pipe while simultaneously pulling in the new pipe section. This pipe replacement method can also be used to upgrade the size of the replacement pipe through the use of a larger expanding head.
b) Sliplining is a method where a smaller diameter pipe is pulled inside a bigger one and then filling the space between the two pipes with grout. The usual materials used for the slips are HDPE, fibreglass and composite materials. This method’s main drawback is that it reduces the pipe’s nominal bore.
c) Thermoformed pipe liners are installed using a winch to pull a folded liner through the pipe to be repaired. Once in, the pipe is heated and pressurized with steam. The liner after the liner expands cold pressurized air is introduced so the liner cools snug with the pipe. Cleaning of the pipe’s internal surfaces is essential to a good fit.
d) Cured In Place Pipe (CIPP) lining is a trenchless repair method where a flexible lining filled with a thermosetting resin is inserted into the pipe to be repaired. Hot water or steam used in the inversion process makes the liner adhere to the internal surfaces of the pipe. Thorough cleaning of the pipe internal surfaces before installing the insert is required.
e) Epoxy lining is a repair method where pipe internal surfaces is cleaned using shot blasting, dried, and then liquid epoxy is ‘shot’ into the pipe to coat its internal surfaces.
Sometimes pipes may not be damaged, but merely blocked. In such cases the right course of action is to call try your hand at DIY unclogging. Manual snaking and the use of drain unclogging chemicals may not always be sufficient. If you suspect that accumulated scum is causing repeated blocks, it may be time to call on drain cleaning Toronto. They will have powered snake wires and water jet cleaning equipment that will clean and clear your drains in no time. You can easily contact good plumbing contractors through organizations such as Plumber’s Residential Council Ontario.
Business and industrial plumbing installations which experience drain problems need to call specialized plumbing contractors who offer commercial drain cleaning Toronto. They will have heavy duty equipment and technicians trained to use them.