When is CIPP Lining Not Recommended?

Cured-in-place pipe (CIPP) lining provides a cost-effective and less disruptive alternative to traditional pipe repair methods. This technique involves inserting a resin-saturated liner into a damaged pipeline and curing it in place, creating a strong and seamless new pipe within the existing one. However, it's important to understand that there are certain situations where this may not be an ideal solution. Our experts at New England Pipe Restoration discuss when CIPP pipe lining is not recommended and why.

Structural Damage

The special liner used in cast iron pipe lining needs a stable, solid structure to adhere to. This is why this method works best for minor cracks, holes, and small-scale corrosion, where the structural integrity of the pipe is still intact. For more severe damage, such as collapsed pipes or major offsets, pipe lining will not be able to provide the necessary reinforcement. In such cases, pipe bursting or other excavation methods may be required to completely replace the damaged line.

Complex Pipe Configuration

Sewer pipe lining is most effective on straight pipes with minimal bends and curves. It's also ideal for single lines, as opposed to complex systems with multiple connections and branches. This is because the liner needs to be inserted and cured in a continuous line, and any obstructions or changes in direction can affect the integrity of the new pipe. In these situations, traditional methods may be more suitable.

Large Diameter Pipes

While CIPP lining can accommodate a wide range of pipe sizes, it may not be suitable for extremely large-diameter pipes. The thickness of the liner needed to reinforce such pipes may make it difficult to insert and cure properly. Pipe lining companies may suggest other methods, such as slip lining or open-cut trenching, for these situations.

New England Pipe Restoration specializes in trenchless pipe lining in Boston, MA, and offers comprehensive pipe assessment to determine the best solution for your specific needs. Contact us today to request a service visit.