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Trenchless Rehabilitation of a 15.000 ft. Sewer Force Main in Glendale, AZ (WWETT Show 2023)

March 23, 2023

Combining flexibility and stability Flexible Fiber-Reinforced Pipes (FFRP) comes up with various advantages for the trenchless rehab of pressurized pipes such as small construction pits, short rehabilitation times and the low level of impact on the environment. However, as such liners can traverse multiple bends and operate independently from the host pipe, FFRP systems do not only account for more efficiency but in fact often display the only feasible solution to difficult projects.

In Glendale, AZ, a 35 years old 6-inch waste activated sludge line, running from Arrowhead Wastewater Treatment Plant to its eventual discharge point, was experiencing internal corrosion and deterioration. This was a uniquely difficult project to approach due to the high concentration of infrastructure and a high number of bends in the line, several of which were 45 degrees and in difficult-to-access locations. This project showcased  the flexibility of the FFRP in similarly difficult and unique situations as the 15.000 ft. could be rehabilitated in 15 sections with minimal disruptions to the surrounding infrastructure. The plant operators were glad to not have to resort to any heavy construction in or around that treatment building and were pleased to have found this ideal solution for the rehabilitation of their aging infrastructure, renewing the pipe for decades to come. 

Learning Objectives:

1. Define the characteristics of the FFRP system 

2. Explain the installation process 

3. Describe the rehab of a force main in Glendale, AZ, using the FFRP 

4. Discuss the advantages that could be achieved using this system

Speaker:  John Moody, Director of Sales, North America at Primus Line Inc.

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