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Various Methods of Modern Sewer Line Repair


New sewer line repair isn’t just one narrow method; it actually has various unique procedures that make use of specialised tools and supplies. What makes modern sewer line repair technology preferable than traditional pipe repair methods is that there is little to no excavation, eliminates property destruction, lowers exposure to sewage waste, and also reduces mess from digging. Discover more of the various methods of modern sewer line repair technology below.

Pull-in-place lining
The first entry in the list is among the most used sewer line repair methods used today. In this method, a fibreglass resin liner is added to a host or current pipe lining that was damaged. Pull-in-place lining may or may not require a little bit of excavation. If the work site has two entry points that can be used by the liner then digging is not needed, but if there is only one access point, then a bit of excavation must be done. The fibreglass liner is pulled into the sewer with a wench machine. After the liner is placed in the optimal position it is then cured with the use of heat or steam.

Cured-in-Place Pipe Relining
Cured-in-place pipe or CIPP is basically the same with pull-in-place lining as it inserts a pipe liner into the sewer pipe system in order to reinforce the internal pipes and improve its resistant to common sewer pipe problems. So what’s the main difference between the two? As what you have read earlier, pull-in-place lining needs two entry points so that it will be able to properly insert the liner. CIPP on the other hand only uses a single entry point. The liner is placed on a flexible bladder and entered into the sewer line. Just like pull-in-place, the liner can be cured through steam, hot water, and even UV lights. But before the lining process is done, the whole sewer pipeline must be cleared off from any debris and roots. Contractors use root-cutting machinery or water jets to get rid of any obstruction.

Pipe bursting
The first step of this trenchless repair is to create a small entry point for each end tip of the pipe that is about to be renewed. A cable is then inserted into the pipe lining which carries the burst head. The new pipe (mainly used with PVC) is connected to the other side of the end of the cable line. After the pipe has been properly positioned, the cable is then pulled which causes the old pipes to bursts and be replaced with the new PVC pipe. However, this method is not optimal for pipes that are severely collapsing. If pipe relining or pipe bursting is too risky for a badly damaged pipe then other methods should be used, specifically pipe replacement.

Moling is best suited for pipe replacement not for increasing the durability of the pipes. It does quite a bit of damage to the surrounding landscape of the work site, but it’s nothing compared to old pipe replacement methods. This process makes use of a mole which is basically a metallic cylinder. It is used to create a hole on the dig site for minimal property damage. After the hole is made, the pipe can be easily replaced.