Problem: In northwest Florida, a coastal region with a high water table, a local utility faced persistent corrosion and groundwater infiltration in its sewer infrastructure. Traditional concrete manholes struggled to withstand hydrogen sulfide, aggressive soil conditions and decades of heavy traffic, resulting in frequent repairs and costly maintenance. As residential subdivision developments rapidly expanded in the area, the utility needed a durable, long-term solution that could meet tight project timelines without sacrificing performance.
Solution: Over the past few years, NOV Fiber Glass Systems’ Water, Environmental, and Flow Solutions group has supplied more than 150 one-piece, closed-bottom fiberglass-reinforced plastic composite manholes to the utility. These lightweight manholes were delivered on time and built to endure both aggressive sewer environments and traffic-rated loads, while enabling safe, efficient installation across multiple residential subdivisions. They are corrosion-resistant, leakproof, and engineered for maintenance-free performance over a multi-decade life cycle. Their seamless, monolithic design eliminates concerns about inflow and infiltration as well as reduces treatment costs and chemical usage.
Result: After testing competitor manholes, the utility rejected them due to fit, finish and overall quality. Based on proven field performance, consistent on-time delivery and product reliability, the utility named NOV as its sole supplier of fiberglass manholes. 979-542-8027; www.nov.com
