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Pipe material, diameter, length, bends, branches, deformation, grade, access, and defects are documented.
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Cured-in-Place Pipe Lining
Cured-in-place pipe lining installs a resin-saturated liner inside a prepared host pipe and cures it to form a new pipe within the old route. Successful lining depends on thorough cleaning, suitable pipe geometry, controlled installation, reconnection planning, and verification after cure.
Warning Signs & Reasons to Schedule Service
- The existing line has cracks, leaking joints, corrosion, or root-entry points but remains continuous.
- Open-trench replacement would cause major surface disruption.
- The route has suitable access for cleaning and liner installation.
- Grade and major deformation do not require excavation correction.
- A camera evaluation indicates lining may be technically feasible.
What the Process Usually Includes
Clean and prepare
Roots, scale, debris, protrusions, and obstructions are removed and the host pipe is prepared.
Install and cure
The liner is measured, impregnated, positioned, expanded, and cured using the selected system.
Reopen and verify
Connections are reinstated as planned and a final camera inspection documents the installed liner.
Advice for Common Situations
Lining follows the existing grade
It will not correct a belly or improve slope unless excavation changes the pipe position.
Every branch requires planning
Laterals and fittings must be identified and reinstated without leaving obstructions.
Host-pipe preparation determines quality
Poor cleaning or unremoved defects can affect fit and performance.
Review access and cure logistics
Equipment, resin, temperature, cure method, ventilation, and service downtime must be coordinated.
Cured-in-Place Pipe Lining FAQs
Is a liner a completely new pipe?
It is a new structural or rehabilitative pipe formed within the existing host, depending on system design and project requirements.
Can every sewer be lined?
No. Collapse, severe deformation, bad grade, missing sections, access limitations, or unsuitable geometry can require another method.
How long must the sewer be out of service?
The outage depends on preparation, liner length, cure system, reinstatement, inspections, and site conditions.
Will lining reduce pipe diameter?
It reduces diameter slightly, but a smooth interior can improve hydraulic performance compared with a rough deteriorated pipe; each project must be evaluated.