Stop Paying for the Same Manhole Twice
A city that coats a manhole owns that manhole again in a few years. The work comes back around, the crew goes back out, and the budget line never closes.
A structural liner ends the cycle. It is structural fiberglass bonded around a continuous non-porous membrane, fabricated for the one structure it repairs and cured in place inside it, and it is designed and tested to last up to 100 years in sewer conditions.
Spend once, on the structure you already own.

What a City Gets
No Excavation
The liner goes in through the opening that is already there. No dig, no new structure, no rebuilding the street around it.
Back in Service the Same Day
A typical manhole is out of service for a single shift. Residents on that street are usually not aware the work happened.
It Goes in Wet
The system is installed in wet or dry conditions. A structure that is still taking groundwater does not have to be dewatered and held before it can be repaired.
Warranted in Writing
A twenty-year non-prorated materials warranty on standard manholes, five years on wet wells, pump stations and culverts. The licensed installer warrants the installation.
A Pilot Program to Start
There is no minimum. Our pilot program prices a small selection of structures so a city can line the worst ones it owns, watch them, and decide about the rest afterwards.
Made Here
Manufactured in Northwest Florida for more than thirty years, and installed in cities across the United States, Canada and Australia.
How a City Usually Starts
Nobody signs a program first. Every city we work with starts the same way.
Send Us One Structure
The one that keeps coming back. A photograph and a depth is enough to begin.
We Tell You Whether It Is the Right Repair
Some structures should be replaced. We will say so.
Your Engineer Gets the Specification Package
Issued directly to the engineer of record so the work can be specified and bid properly.
A Licensed Crew Installs It
Installation is carried out by contractors trained and licensed on the system.
Questions Cities Ask
Does the structure have to come out of service?
Usually for no more than a single shift. Most manholes are lined and returned to service the same day.
Can it go in where the structure is still leaking?
Yes. The system is designed to be installed against active groundwater, so the infiltration does not have to be stopped first.
What is warranted?
A twenty-year non-prorated materials warranty on standard manholes, and five years on wet wells, pump stations and culverts. Installation is warranted by the licensed installer.
How is this different from an epoxy or cementitious coating?
A coating protects a surface. The Triplex Liner is a structural wall with its own corrosion barrier, cured in place inside the existing structure.
Get Involved
Whether you manage a city's structures, write specifications, or install for a living, it starts with a conversation. Tell us what you are working with, and we will tell you honestly whether the Triplex Liner is the right fix and what the next step looks like.