Skip to content
Done Right Since 1950 ✦

Post-Lining Inspection & Verification

Post-lining inspection documents the cured liner, transitions, branch openings, termination points, surface appearance, and flow path. It helps confirm that the line is open and that visible installation details match the project plan before the system returns to normal service.

Warning Signs & Reasons to Schedule Service

  • A newly lined sewer needs final acceptance documentation.
  • Branch connections have been reinstated.
  • The project includes warranty or jurisdictional inspection requirements.
  • Flow behavior differs after installation.
  • Future owners or maintenance teams need a baseline record.

What the Process Usually Includes

1

Allow cure and reinstatement

The liner is cured and all planned branches, ends, and connections are completed.

2

Camera the full accessible length

The inspection records liner continuity, transitions, wrinkles, branch openings, debris, and termination details.

3

Verify function

Flow, drainage, cleanout access, and any required testing are checked.

4

Deliver documentation

Video, observations, warranty information, limitations, and maintenance guidance are organized for the owner.

Advice for Common Situations

1

Keep the final video

It is the best baseline for future maintenance and warranty discussions.

2

Ask how branches were reinstated

Every connection should be identified and opened according to the plan.

3

Document limitations

Some transitions, bends, or inaccessible areas may have project-specific constraints.

4

Use appropriate future cleaning methods

Maintenance tools should be selected with the liner material and manufacturer guidance in mind.

Post-Lining Inspection & Verification FAQs

What should a finished liner look like on camera?

It should show a continuous open flow path with documented transitions and branch openings; minor visual characteristics must be interpreted in context of the system and specifications.

Is pressure testing always required?

Testing requirements vary by project, liner system, jurisdiction, and pipe use.

Can a lined pipe still need cleaning?

Yes. Lining corrects host-pipe defects but does not prevent foreign objects, grease, or improper use from causing blockages.

What records should the owner receive?

Ideally the final video, project scope, liner details, warranty information, branch reinstatement notes, and maintenance guidance.