Swift and silent sewer rehab under apartment complex

Problem: The wastewater pipes under an apartment complex in Hollywood, Florida, had to be repaired. There was 68 feet of 6-inch pipe that required rehabilitation with only one access point available.

Solution: Pipelining Technologies rehabilitated the wastewater pipes in the building using BRAWO SYSTEMS equipment. BRAWO SYSTEMS provided on-site technical support for the installation of the BRAWOLINER using the Magnavity SX light-curing system. The wastewater pipes to be rehabilitated were first thoroughly cleaned to ensure optimum adhesion of the liner. The liner was inverted into the pipe through the single access point. The liner was cured using special lighting technology. 

Result: By using only one access point and not having to carry out any demolition work, the tenants of the apartment complex were hardly disturbed at all. The entire refurbishment was completed in a very short time. After cleaning, it took under 60 minutes for the work to be completed. The use of light to cure the liner meant that the rehabilitated wastewater pipe could be put back into operation quickly. 240-796-5007; www.brawosystems-usa.com

Using a recycler combination unit in a large-diameter pipe

Problem: A West Coast municipality was in the planning stages of replacing a 52-year-old, 568-foot, 36-inch trunk line that fed the city wastewater treatment plant due to the need for more capacity. The city had been unable to clean this pipe with traditional methods due to heavy contamination of debris and grease.  

Solution: The Kaiser Premier AquaStar was utilized on this line to demonstrate the recycler’s ability to operate without running out of cleaning water. The AquaStar worked the line nonstop for 5 hours utilizing a step-clean method every 50 feet, successfully cleaning 450 feet of pipe. The recycler processed over 22,000 gallons of recycled fluid for cleaning with only a single 700-gallon freshwater fill-up. The end-of-day offload was approximately 8 yards of decanted, compacted material from the bottom of the pipe. As an unforeseen benefit, every time the floor cleaner nozzle broke into new material there would be a release of hydrogen sulfide gas. This sparked a revelation by the municipality that the $750,000 annual spent on product for chemical mitigation of hydrogen sulfide could be reduced by investing in an AquaStar due to its ability to stay on task for extended periods and clean all the material out of the pipe.

Result: The municipality was finally able to clean this difficult pipe instead of the costly replacement of the trunk line and reduce the cost and use of chemicals. 970-542-1975; www.kaiserpremier.com

UV light shines through at FAA tower

Problem: The FAA tower at a regional airport in Nebraska faced severe issues with persistent sewer smells disrupting staff and operations. An inspection revealed a significant leak in the risers due to a crack on the third floor, allowing sewage to seep down, threatening the building’s integrity and the health of the staff. Pipe replacement would have required a multi-day shutdown, significantly impacting airport operations. 

Solution: Seeking a more efficient solution, airport staff reached out to NuFlow Nebraska, known for its noninvasive pipe rehabilitation expertise. A comprehensive inspection found 45% of the system was compromised by heavy scale buildup and corrosion. NuFlow Nebraska proposed NuCure UV CIPP lining technology to minimize disruption and ensure a durable repair. The project, executed in harsh winter conditions with temperatures dropping to -10 degrees F, showcased the versatility of NuCure UV technology. The UV light curing process proved to be both efficient and effective. Once the liner was in place, the UV lights were activated, curing the resin in a rapid 10-minute cycle. The UV method accelerated the project timeline and ensured a consistent, high-quality cure. The system also allowed the team to prepare liners in advance, enabling a calm and controlled installation despite the extreme cold.

Result: The project was completed in only two days without disrupting day-to-day operations at the airport. Impressed by the efficiency, the airport plans further rehabilitation using the technology, ensuring smooth operations and a healthier environment for staff. 866-430-2134; www.nuflow.com

Lining method a fit for metro area’s sewer rehab

Problem: A major metropolitan area in the southwestern United States was looking for alternatives to traditional rehabilitation methods that would specifically reduce or eliminate environmental impact, provide more consistent results and handle lining through unconventional access points. This particular municipality had the issue that sanitary lines did not terminate at a manhole, but rather cleanouts. 

Solution: After assuring the owner of the system that Thermoform could handle the specific requirement, Thermoform Liner from Warrior Trenchless Solutions was selected for a 6,000-foot sanitary pilot project. With an installation partner already secured, the project began in June of 2023 and completed later that summer.  

Result: The pilot project was a success and the municipality was 100% satisfied with the results. Thermoform liner was added to its Standards and Specifications and included on a four-year, $10.5 million job order contract that was awarded in the fall of 2023. Just over one year later, the contracting partner has surpassed the 40,000-linear-foot mark for installations and is gearing up to add additional lining crews. 716-601-7760; www.thermoformliner.com