How is pipe lining done:

Initial Inspection: Start by conducting a thorough inspection of the sewer pipe using a video camera. This inspection helps identify the location and extent of damage or deterioration within the pipe. It is essential to understand the scope of the problem before proceeding.

Obtain Necessary Permits: Check with your local government or municipal authorities to obtain any required permits for sewer pipe lining. Compliance with local regulations is crucial to avoid legal issues during the project.

Hire a Qualified Contractor: Seek out a reputable trenchless sewer pipe lining contractor with experience in CIPP lining. Verify their credentials, licenses, insurance, and references before hiring them for the job.

Cleaning and Preparation: Before lining the sewer pipe, it must be thoroughly cleaned to remove any debris, roots, or obstructions. High-pressure water jetting or mechanical cleaning tools may be used to achieve this.

Measure and Cut the Liner: The contractor will measure the length of the sewer pipe to be lined and cut a flexible resin-impregnated liner to the appropriate size. The liner material is typically made of felt or fiberglass.

Resin Impregnation: The liner is saturated with a resin mixture that is designed to harden when cured. The resin impregnation process ensures that the liner becomes rigid and forms a new pipe within the existing one.

Insertion of the Liner: The saturated liner is inserted into the sewer pipe through a manhole or access point. The liner is usually pulled or pushed through the pipe using air pressure or hydraulic equipment. As it advances, it adheres to the interior walls of the existing pipe.

Inversion and Expansion: Some CIPP lining methods involve inverting the liner using air or water pressure so that it conforms to the shape of the existing pipe. The liner is then expanded against the pipe walls, ensuring a tight fit.

Curing the Liner: Once the liner is in place, it needs time to cure and harden. This process is typically achieved using hot water or steam, which activates the resin and causes it to harden, creating a new, structurally sound pipe within the old one.

Final Inspection: After the curing process is complete, the contractor conducts a final inspection using a video camera to ensure that the lining has been properly installed and that there are no defects or issues.

Reconnection and Testing: Any service connections, such as branch lines or manholes, are reconnected to the newly lined sewer pipe. The sewer system is then tested to ensure proper flow and functionality.

Documentation and Warranty: The contractor should provide you with documentation of the work performed, including warranty information for the lined sewer pipe. Be sure to keep these records for future reference.