Manholes are critical access points, but they're vulnerable to structural degradation and I&I. Modernizing these structures requires a comprehensive approach, from predictive software that tracks I&I data to specialized cutting tools and rotating cleaning nozzles that prepare sites for rehabilitation. Technologies and products like those below are engineered to seal out groundwater, contain noxious gases and extend the lifespan of aging infrastructure. Together, these innovations create safer, more resilient underground networks.
ADS Environmental Services SLiiCER Software Suite
The SLiiCER Software Suite from ADS Environmental Services seamlessly pulls together all relevant I&I data in one place and gives system engineers an extensive set of analysis tools to create I&I studies, identify rainfall events, track sewer performance, compare dry-day vs. wet-day performance, map diurnal curves and evaluate capital improvement rehab projects aimed at reducing I&I. The SLiiCER app, integrated within the ADS PRISM platform, leverages seamless data integration, trusted analytics and flexible reporting in a single, unified platform. 877-237-9585; www.adsenv.com
CCI Piping Systems WrapidSeal Manhole Encapsulation System
The WrapidSeal Manhole Encapsulation System from CCI Piping Systems consists of an engineered primer and a wraparound, heat-shrinkable sleeve designed to seal joints and prevent groundwater from entering a collections system. This material has a high-shrink membrane (70% stretch and 40% recovery) designed to shrink around any manhole profile. In addition, the high-tensile strength accommodates structural movement while the tough backing resists soil stress and provides suitable abrasion resistance. It can be used for new construction or for the rehabilitation of existing manholes to control infiltration through joints and prevent deterioration, thus eliminating costly maintenance repairs and the added expense of treating groundwater. 800-867-2772; www.wrapidseal.com
Coneqtec-Universal HS-57
The Coneqtec-Universal HS-57 is a round hole saw attachment to cut out a circle around the manhole. This removes all hard edges distributing the load evenly around the repair. The attachment has a hydraulically activated clamp that can grab onto the inside of the manhole collar and remove the core, eliminating the jackhammer completely. 316-943-8889; www.coneqtecuniversal.com
Cretex Specialty Products Internal Chimney Seal
Cretex Specialty Products Internal Chimney Seals are mechanical, so there is no need to worry about surface adhesion or stopping active leaks prior to installation. The seals eliminate and prevent manhole chimney inflow. During wet weather, clear water enters the manhole through deteriorated and broken chimney joints, which may burden the collections system. The chimney seal has a 50-year design life and is available in four widths, allowing complete chimney coverage up to 24 vertical inches with a single seal. 800-345-3764; www.cretexseals.com
Manhole Odor Eliminator MOE
The MOE from Manhole Odor Eliminator is a passive odor control device designed to mitigate hydrogen sulfide and other sewer gases at the point of release. Installed beneath standard manhole covers, the system incorporates activated carbon filtration and a variable‑volume bladder that responds to pressure fluctuations within the sewer system. By buffering pressure changes and treating intermittent peak gas releases rather than continuous airflow, the device is intended to extend media life and reduce routine maintenance demands. This approach allows odor control to occur locally without the need for active ventilation or chemical dosing. Because the system operates without electricity, fans or external power sources, it can be applied in locations where centralized or powered odor control infrastructure is impractical. Installation and cartridge replacement can be completed using standard tools, supporting routine maintenance activities with minimal surface disruption. 209-545-1663; www.manholeodoreliminator.com
RELINER/Duran Inside Drop System
The Inside Drop System from RELINER/Duran eliminates problematic outside drops and rehabilitates failed inside drops with a straightforward, field-proven design. Compact, low-profile drop bowls and stainless steel pipe support brackets bolt directly to the manhole wall, so there’s no complicated fabrication required. Systems can be inspected and cleaned from above, reducing confined space time. Solids and liquids remain combined and discharge directly to the invert channel, minimizing turbulence and protecting bench and wall surfaces from erosion. Force line hoods are available for high-velocity inlets, and a wide range of sizes accommodates diverse pipe configurations. 800-508-6001; www.reliner.com
TITUS Wastewater Solutions TwistLIFT
Engineered for strength, safety and long-term performance, the TwistLIFT composite manhole system from TITUS Wastewater Solutions is redefining expectations for modern wastewater infrastructure. Built with continuous filament fiberglass, these lightweight yet durable covers deliver superior load capacity, corrosion resistance and long service life. The precision-fit urethane seal helps reduce infiltration and inflow while minimizing noise and containing odors. At the core of the system is the TwistLIFT Lock, a quarter-turn cam mechanism that pulls the lid securely into place for a tight, reliable seal. Designed with a high-security, corrosionproof titanium lock and specialized access tool, it helps deter tampering, theft and accidental displacement. This system offers a safer, quieter and more resilient alternative to traditional metal covers. 877-582-9899; www.tituswws.com
USB-USA Spin-Jet
The Spin-Jet from USB-USA is a self-centering, controlled rotating nozzle that is used for cleaning lift stations, barrels and manholes prior to rehabilitation. Available in two different versions, it has driving nozzles that rotate in a 360-degree horizontal plane only. This action eliminates the need to cover the manhole during operation, allowing for constant viewing of the cleaning process. Front jets thoroughly clean any grease, sludge or mud at the bottom. 844-285-5770; www.usb-usa.com
