Trenchless Pipelining is a way to restore the pipe from corrosion, leaks, or cracks from roots. It’s a four-step process and essentially is putting a tube within a pipe. The lining is cost-efficient and less disruptive in comparison to replacing the entire pipe. Pipelining also increases the life span of a piping system, preserves the building structure, landscape, and causes little to no destruction to the property.
Why is trenchless pipe installation the better option?
Trenchless requires very little excavation. Traditional sewer line repair involves digging massive amounts of dirt and concrete even when the affected section is relatively small. Additionally, these repairs cost more because of the equipment and manpower used. Trenchless rehabilitation and installation is the better choice because it’s a less invasive process that requires less time on the job and very little disturbance to your yard or driveway.
Trenchless Pipe Lining Techniques and process
The most common failures are corrosion and tree roots growing into the pipe. Oxygen, metal, water, and minerals chemically react, causing a buildup called scaling, a mound of corrosion where minerals turn into acids that eat away at the pipe.
Water that runs through the drain is often treated for chlorine consumption, and if that chlorine is highly concentrated, that will cause corrosion over time. Trees are another cause of failures – trees grow their root systems into pipes, causing cracks. Why? Trees are always looking for water to survive, and these drainage pathways are the perfect water source.
The next step in the lining process is to clean the inside of the pipe so that the CIPP liner will adhere to the host. Cleaning is done with mechanical cutters that remove scale buildup and roots.
Once cleaning is complete, the technicians saturate a felt liner with two-part epoxy. They score the outside of the liner so that it will adhere to the inside of the pipe. No water will be able to get in-between the liner and the cleaned area. The liner is then pulled through, and the rubber bladder inside the felt is expanded to allow the epoxy liner to cure, adhering to it.
Once the CIPP liner hardens, the rubber bladder is deflated and removed, leaving behind a better than new pipe within the existing system. The lining then separates the original system that is susceptible to failure from the material flowing through it.