Upper Arlington Lutheran Church CIP-Duct Project
The Upper Arlington Lutheran Church found their facility in need of HVAC rehabilitation. The facility required restoration of an underground air duct system serving the building.The underground HVAC duct system had deteriorated over time and required rehabilitation. Groundwater infiltration was compromising system performance and negatively impacting indoor air quality.
An ambient cure 12-inch CIP-Duct® liner was used to rehabilitate the existing duct without excavation. The solution restored structural integrity while sealing the system against further infiltration.The project consisted of two liner installations, one approximately 40 feet and another about 60 feet in length, including a 45-degree bend in the longer run. Approximately 10–12 register reinstatements were completed to reconnect the system. The installation was completed smoothly over the course of two days with no major challenges. The rehabilitated system is now sealed and functioning as intended.
"I thought I'd never get someone to come and look at what I needed done, but 1 call to a Flow-Liner Installer and they were willing to come and look. We discussed my hopes to fix a smelly, wet and bad in ground ductwork system (1942) with their lining system and quoted a reasonable price. The finished job has fixed all the issues we were having." - Maintenance Director
East Carolina University Chiller Pipe
East Carolina University in Greenville, NC, is the fourth largest university in North Carolina. Founded on March 8, 1907 as a teacher training school, the campus has grown from just 43 acres to nearly 1,600 acres and now serves more than 29,000 students. With infrastructure spread across a large and active campus, maintaining underground utilities efficiently is essential to keeping daily operations running smoothly.
The university identified an issue with an 8” PVC chiller line after noticing a persistently wet area above two 8” lines. Further investigation revealed a crack in one of the pipes. With the line located in a sensitive campus area, excavation would have been disruptive and costly. The university needed a trenchless rehabilitation solution that would restore the pipe’s integrity quickly while minimizing impact to students, staff, and surrounding facilities.
A Flow-Liner Certified Installer rehabilitated 112 feet of 8” PVC pipe, including two 45-degree bends, using a Flow-Liner custom laminate-liner and ambient-cured system. The entire rehabilitation was completed in just two and a half days, allowing the university to address the issue quickly without extended disruption. The customer commented on how impressed they were with how efficiently the team mobilized, completed the work, and restored the line.
"Because of terraced hardscape conventional excavation was not a viable option making pipe lining by far the best solution. I’m sure we will be calling on Flow-Liner in the future and highly recommend your product as a viable option to open trench pipe replacement." -ECU Facilities Services Mechanical Engineer