The Product
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.
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.
Is this a coating?
No. It is a structural fiberglass liner fabricated for one structure and cured in place inside it.
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.
Is this only for manholes?
No. Manholes are the core application, and the same system lines lift stations, wet wells, pump stations and culverts.
What kinds of structures can be lined?
Manholes, lift stations, wet wells, pump stations and culverts, whatever their size or shape.
How long does it last?
The liner is designed and tested to last up to 100 years in sewer conditions. Standard manholes carry a twenty-year non-prorated materials warranty, and wet wells, pump stations and culverts carry five years.
What is the service life?
Up to 100 years in sewer conditions, designed and tested. The materials warranty is twenty years non-prorated on standard manholes and five years on wet wells, pump stations and culverts.
On Site
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.
How long is the structure down?
A typical manhole is lined in four to six hours and returned to service the same day. Larger structures take longer.
What does this do to our operations?
Less than most rehabilitation work. A typical manhole is out of service for a single shift and back in 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.
We have active infiltration. Is that a problem?
No. Being able to line a structure that is still taking water is one of the reasons the system was developed.
Who installs the liner here?
Trained crews licensed on the Triplex system. Contact us with your project and we will route it.
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.
Cover and Reach
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 long is it warranted for?
Standard manholes carry a twenty-year non-prorated materials warranty. Wet wells, pump stations and culverts carry five years. The installer warrants the installation.
Do you work outside the United States?
The system is installed across the United States, Canada and Australia, and we welcome enquiries from anywhere.
Is the system available internationally?
Yes. It is installed in the United States, Canada and Australia, and we welcome international work.
Can we write this into a specification?
Yes. We issue a specification package to the engineer of record on request, with product data, section details and guide specification language.
What does an engineer need from you?
A specification package with product data, section details and guide specification language, issued to the engineer of record on request.
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.