What is Cured in Place Pipe Lining and How Does it Work

Drain inspections

Cured in place pipe lining is a method which rehabilitates existing pipes making replacement of these pipes unnecessary. These trenchless sewer repair methods have been around for homeowners for around 15 years. Using these methods there is no more need for hours digging up the pipes just to replace them, saving time and money for both the customer and the company.

What is it

Cured in place pipe lining is commonly referred to as trenchless technologies or trenchless repair. It consists of a joint less, seamless, pipe within a pipe, which has the capability to repair pipes ranging from 4″ to 110″ in diameter. This method is used to repair cracked and broken pipes commonly found in sewers and storm drains. This method is more cost effective compared to digging up the pipes to repair them. It can normally be performed with little to no digging and works on a variety of pipes including PVC, clay, concrete and corrugated metal pipes.

How is This Fix Determined

The pipe is usually cleaned then a robotic camera is run through the piping. This camera inspects the pipe and determines whether there are any issues that must be addressed before repair can be performed. Once cured in place piping has been determined to be a successful option, measurements are taken, and the process can begin.

How does Cured in Place Pipe Lining Work

The mixture consists of polyester felt with polyurethane coating on the outside. It is in liquid form and transported to the location via a refrigerated truck. Once at the location either a host pipe or a winch is used to position it. A liner is positioned and inflated with either air or water to press the material securely and firmly against the pipe wall. After it is fully inflated steam or hot water is used to set the material, then it is cooled slowly to prevent it from shrinking.

When Will This Method Not Work
There are certain instances where cured in place pipe lining will not be successful and should not be used. If the pipe has suffered a loss of shape, then this method will most likely not be successful. Other instances when this method should not be used include instances when chemicals going through the pipe will erode the material, or when temperatures in the pipe get abnormally high. If the pipe has collapsed or when there is a need to increase the existing pipe size, then this method is not recommended.

Around 73% of homeowners admit to being prepared to pay more for sewer pipe replacement if it meant their landscape would not have to be dug up. Preserving patios, decks and other outdoor features is another benefit of cured in place pipe lining. The old days of pipe replacement are being replaced with this new technology, and the benefits are numerous.

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