Do It Right Once
Temporary fixes like spray-ons and coatings protect a surface for a short time. Real rehabilitation requires the Triplex Liner: the structure gets its strength and its corrosion protection back in one operation.
That is why cities that have tried both specify the liner. It turns a maintenance cycle into a finished repair.


America's Underground Infrastructure Is Falling Apart
Every city runs on infrastructure nobody sees: manholes, lift stations, wet wells. Sewer gas eats the concrete, and years of corrosion end in leaks and lost strength. Cities have spent decades paying for temporary fixes to a permanent problem.

The Triplex Liner System Is the Permanent Fix
The Triplex Liner is not a coating. It is a new structural wall of fiberglass and a continuous corrosion barrier, cured in place inside the existing structure. The structure gets its strength back and keeps it.
The system has been patented, proven in service, and designed and tested to last up to 100 years in sewer conditions.
It is installed in cities across the United States, Canada and Australia.

How It’s Done
Every liner is measured against the structure it will repair and custom built at our factory. On site, the work moves fast: the structure is prepped, the liner is cured in place, and the structure returns to service. For a typical manhole, installation is completed in a single day.
Engineers can request the full specification package. The disruption a city fears from rehabilitation is the part we engineered out.

Measured and Built
Every liner starts at our factory in Northwest Florida, custom built to the measurements of the structure it will repair, in two pieces: the shaft and the bottom disc.

Prepped and Installed
On site, the structure is cleaned back to sound wall. The crew saturates the liner, lowers it in, presses it into full contact with the structure, and cures it in place with steam and air.

Back in Service
The inlets and outlets are cut and reopened, and the structure returns to service with a new structural wall inside the old one. Installation for a typical manhole is completed the same day.
Built for the Toughest Jobs
Deep, in freezing temperatures, in the middle of Edmonton, Alberta. Some structures are critical to a city's health and nearly impossible to take offline: deep, downtown, on streets that cannot close. That is the work this system was built for. The liner goes in through the opening that is already there, one piece, built for that structure, and the street is back the same day.
Working in Michigan
We work with Michigan municipalities, utility districts and consulting engineers on manhole, lift station and wet well rehabilitation. If rehabilitation is in your capital plan, we can help scope and specify it.
Triplex Liners in Michigan
There is Triplex Liner work in Michigan, in Allen Park, in 2001. Every liner was made at our plant in Northwest Florida, built to the measurements of the structure it was going into, and cured in place inside it.
Cities in Michigan With Triplex Liners in the Ground
Allen Park.
Where We Take Projects in Michigan
We take projects across the state. Detroit, Grand Rapids, Warren, Sterling Heights, Ann Arbor, Lansing, Clinton Township, Flint, Dearborn and Livonia, and the districts and authorities between them.
What Michigan Asks Within Twenty Four Hours
Michigan statute makes the person responsible for the sewer system notify the state immediately, and in no case later than twenty four hours after a discharge of untreated or partially treated sewage begins, onto land or into water. Local health departments and a daily newspaper are notified as well, and the state posts the notice publicly.
Reporting is the symptom; the structure is the cause. Where an overflow traces back to a manhole or a lift station that has lost its wall, rebuilding that wall ends it. Where the cause is capacity or a blockage, lining is not the answer and we will say so.
Three Ways In
What the liner costs a city over its life, and what the warranty covers.
Go →Writing a spec?EngineersRequest the specification package: product data, section details and specification language.
Go →Install for a living?ContractorsThe Triplex system is licensed to trained contractors, and we are signing across the country.
Go →Questions We Get in Michigan
Do you line lift stations and wet wells, or just manholes?
Both. Manholes are the core application, and lift stations and wet wells are lined with the same system.
We have used coatings before. What changes?
A coating depends on the wall underneath it. The Triplex Liner is a new structural wall, cured in place inside the old one, with the corrosion barrier built into it.
What is the service life?
Up to 100 years in sewer conditions, designed and tested. The warranty is twenty years on manholes and ten years on lift stations and wet wells.
Do you self-perform the work?
Installation is carried out by contractors licensed and trained on the system. Send us the project and we will connect you.
Do you work outside the United States?
The system is installed across the United States, Canada and Australia, and we welcome enquiries from anywhere.

