Perfect Lined Manhole System
A complete sewer system with integrated plastic liner for a corrosion-free service life.
ASTM C478, AASHTO M199
Perfect Lined Manhole is a reinforced precast concrete manhole that meets ASTM C478 and is lined with high-quality synthetic polymer liner, which protects the concrete from Microbial Induced Corrosion (MIC) when exposed to municipal and industrial wastewater.
The entire structure of the monolithic manhole base including the wall, channel, berm, and the pipe connections are reliably leak-proof. The smooth change in the angle and slope of all channels and pipe connections provide ideal flow properties and prevent deposit build-up. The custom invert channels accommodate pipe of any configuration or size.
After installation, the Perfect Lined Manhole is easy to maintain and provides a high load-bearing capacity under static and dynamic loads. Setting a new quality standard for surface drainage and wastewater systems, the Perfect Lined Manhole System is available in standard sizes ranging from 48” up to 120” diameter.
Perfect Lined Manholes combine with Perfect Pipe for a completely lined, corrosion-resistant solution for municipal wastewater systems.
Watch to See Inside the ‘Perfect’ System:
Specifications & Drawings
Perfect lined manholes meet traditional precast concrete manhole specifications, with the added value of a corrosion-resistant plastic liner and leak-proof, weld-free rubber gasket connections.
HDPE Liner Technical Data
- HDPE Liner Technical Data Sheet (PDF)
- HDPE Liner Safety Data Sheet (PDF)
- HDPE Liner UV Stabilization Technical Statement (PDF)
The Wavetronix project is a private commercial development with new wastewater infrastructure connecting to the municipal sanitary sewer system. To protect the system from accelerated corrosion caused by burping from the nearby water treatment plant, Wavetronix selected Perfect Lined Manholes as junction structures between 8-inch SDR-35 sanitary sewer piping.
Lakefront at Vineyard City Town Center 1E
Featuring the first installation of a Perfect Lined Manhole manufactured by our Geneva Pipe and Precast team, this custom fabricated lined manhole replaces a decaying manhole. The new lined manhole provides a corrosion-resistant solution at a pivotal point in the modernization of sanitary sewer infrastructure in Vineyard City, Utah.