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APM SpinCaster
For cities with sufficient manpower, the city self-install program for sanitary and storm manholes and catch basins is a dollar-saving choice. Factory training and the bidirectional SpinCaster from APM enable a three-person city crew to reinforce, seal and protect four to eight structures per day. Supervisors schedule crews as they are available on a day-to-day basis, and cities typically save $250,000 or more by doing 100 to 500 structures during the season. The system includes a pneumatic, spark-free, explosion-proof motor. The bidirectional rotation ensures an even application with the rotation of 3,500 rpm to maximize radial impingement of mortar to the substrate. The high rpm speed keeps the unit centered in the structure and applies material at the best design thickness calculated for the diameter, depth and conditions of the existing pipe. 515-276-9610; www.waterlinerenewal.com/apm
Chemical Grout
Avanti International injection grouts
Infiltration enters underground systems every day through defects or faulty joints in manholes, causing system capacity issues, overload at treatment plants and possible injury to the community. Avanti International injection grouts have historically proven to be an economic and long-term solution to combating infiltration entering all areas of a collections system, including manholes. Injection grouts are engineered to stop leaks, stabilize soil and control groundwater, and be used in precast barrel joints, brick and concrete masonry units, pipe penetrations, vertical or horizontal cracks, void fill and pinholes. Each technique enables the technician to stop several leaks at once and helps to extend the life of the structure. 800-877-2570; www.avantigrout.com
Epoxies
Epoxytec Mortartec Cladliner
Mortartec Cladliner from Epoxytec is a practical and economical approach to sanitary sewer manhole and other wastewater infrastructure lining by providing ease of application while delivering performance with savings. It is an engineered standalone hybrid epoxy-cement liner combining the simplicity of a cementitious lining with the performance of a high-build epoxy. It offers acid resistance to protect from corrosion derived from mild-to-moderate hydrogen sulfide conditions up to 100 ppm. It is well suited for the protective lining of new structures and the rehabilitation of aging structures, particularly brick or concrete sanitary sewer infrastructure. 877-463-7699; www.epoxytec.com
Infrastructure Repair Systems Infragard
Infragard concrete and manhole rehabilitation products from Infrastructure Repair Systems include Top Coat and Chim-Coat, which are nonhazardous ambient-cure epoxy systems for a small patch, entire manhole or retaining wall. This cost-effective solution requires no expensive equipment as it has an easy trowel-on application. They are corrosion-resistant and high strength, with an impermeable structural bond to the substrate or to almost any concrete or metal surface. Chim-Coat is engineered with a flexible feature that maintains adhesion while expanding or contracting with changing temperatures and traffic loads. 877-327-4216; www.irsi.net
PPG Protective & Marine Coatings RAVEN 405
The RAVEN 405 wastewater treatment coating system from PPG Protective & Marine Coatings has high physical strength and broad chemical resistance to stand up to severe, caustic environments. This ultra-high-build epoxy lining system has Severe Wastewater Analysis Testing certification and passed the Pickle Jar Test, as its thick film can withstand high hydrogen sulfide gasses and other caustics, chemicals and acids found in a wastewater facility. Applications include concrete wastewater lining, clarifiers and digesters, tunnels and pipelines, tanks, secondary containment and manholes. Benefits include corrosion resistance, 100% solids, ultra-low VOC (0.52 g/L), adhesive strength and quick return-to-service. It can protect new concrete or help rehabilitate an existing structure. 888-977-4762; www.ppgpmc.com
Manhole Liners
AGRU America Sure-Grip
Sure-Grip liners from AGRU America are made of HDPE, HDPE-el, PP, PVDF or ECTFE, and serve as a long-term alternative to spray-applied concrete protection products. The liners prevent concrete corrosion and degradation, can substantially extend the lifetime of a structure, and by preventing exfiltration and infiltration, provide direct protection for the environment. The liners have anchoring systems that enable construction in areas of significant backpressure. Unlike spray-applied liners, which have to be reapplied regularly due to cracking or delamination, these liners are long-lasting and designed to avoid the residuals cost often associated with concrete spray-on liners, which require tank emptying and cleaning every few years for reapplication. 843-546-0600; www.agruamerica.com
HammerHead Trenchless Bluelight LED
The redesigned Bluelight LED CIPP lining system for laterals and small drainpipes from HammerHead Trenchless uses a specially formulated resin that only cures under light in the “blue” wavelength, giving installers a significantly longer working time between liner wet-out and curing. Once installed, the automated curing system pulls the LED light head through the liner, curing the resin almost instantly — up to five times faster than other methods. Instead of waiting hours for the liner to cure, a 50-foot sewer line could be fully cured in under 10 minutes. 800-331-6653; www.hammerheadtrenchless.com
Perma-Liner Industries Perma-Main Top Gun
The Perma-Main Top Gun from Perma-Liner Industries is a manhole-to-manhole, continuous inversion lining system. It is specifically designed to rehabilitate 8- to 24-inch-diameter pipelines in only a few hours with no excavation or disruption in substrate. The liner is air-inverted through existing manholes and steam cured in as little as 90 minutes using compact 750,000 Btu dry-steam generators. This minimizes repair time, road closures and reconstruction, and allows for safe reactivation of the repaired pipeline in just hours. Because the system can be continuously fed, there is no limit to the length of material it can invert. Depending on the infrastructure, the installation lengths for liners typically average 300 to more than 600 feet. Prep time is minimal because all liner materials are premeasured and delivered to the repair location pre-saturated. 866-336-2568; www.perma-liner.com
Sprayroq SprayWall
SprayWall from Sprayroq is a rigid polyurethane material that provides structural integrity and infiltration control to underground infrastructure assets. It is a 2-1-ratio product that is applied via a heated, plural component spray system. It begins to gel in about eight seconds and is tack-free after two minutes. Within 30 to 60 minutes, the initial cure is complete and the structure is capable of accepting flow. The benefits include its structural capacity, which provides for protection against multiple load components within an underground asset including water, soil and traffic loads. In addition, it allows an asset owner to return a structure to service quickly, creating a huge savings on bypass cost, as well as decreasing the overall downtime for a given structure. It is also third-party tested and most recently has undergone significant successful evaluations through AASHTO. 205-957-0020; www.sprayroq.com
Manhole Parts and Components/Tools
Cherne Air-Loc Manhole Cover Hooks
Cherne Air-Loc Manhole Cover Hooks are forged with hexagonal steel for extra strength, providing a simple tool to pry open manhole covers. Available with flat or 90-degree handles, the hooks are available in four variations, from 24 to 36 inches. 952-933-5501; www.cherneind.com
CUES SPiDER
The CUES SPiDER allows technicians to inspect vertical structures in minutes, helping them make reliable repair decisions. It is flexible enough to inspect structures from 15 inches to 15 feet wide and up to 75 feet deep. It allows for a rapid inspection time with a nonstop rate of descent of 5 feet per minute. Its portable design eliminates excess hardware like cables and footage encoders. Its durable and waterproof solid aluminum design has been field-proven in over 250,000 inspections exhibiting minimal maintenance. The easy process can get the technician started inspecting in minutes out of the case. Lenient technology minimizes the rules to inspect and ensures assessments are done right the first time. Quality control tools are available to the field crew and office staff. It features automated data transfer from the field to the office, with accurate results with sub-inch 3D models and embedded GPS. It is compatible with all NASSCO-certified software. 800-327-7791; www.cuesinc.com
RELINER/Duran conveyance products
RELINER/Duran provides a full range of products specifically developed to provide efficient, controlled conveyance of flow through manholes. Inside drop bowls capture inflow and convey it directly to the invert channel though the drop pipe. They are available with outlets ranging from 4 to 24 inches and are available to fit most round and flat-walled structures. Force line hoods are available for high velocity inlets. Stainless pipe support brackets securely fasten drop pipes or any other pipes to structure walls. Available in type 304 or type 316 stainless, they are noncorrosive and adjustable to align the drop pipe properly to the Drop Bowl. Modular manhole invert channels are made from marine-grade fiberglass, providing a consistent cross-sectional area with very high-flow capacity for the most efficient conveyance through the manhole. 800-508-6001; www.reliner.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
Riser
EJ INFRA-RISER
The INFRA-RISER rubber composite adjustment riser from EJ is a simple, efficient, long-lasting solution for-manhole structure damage problems. Concentrated loads in high-stress areas cause structure failure and infiltration points. The dampening and compression properties of the adjustment riser help dissipate traffic vibrations and evenly distribute loads over the entire supporting structure. When installed according to guidelines, the INFRA-RISER creates a virtual tight seal between the manhole chimney structure and the manhole or catch basin frame. Infiltration prevention and dampening of the traffic loads help maximize the performance and extend the lifetime of infrastructures, while achieving significant cost savings. These adjustment risers are available in standard and custom shapes for a variety of applications and are made from 92% recycled materials. 800-626-4653; www.ejco.com
Sealants
CCI Piping Systems WrapidSeal Manhole Encapsulation System
The WrapidSeal Manhole Encapsulation System from CCI Piping Systems consists of an engineered primer and a wrap-around, 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
Oatey Hercules Shutout Manhole Lubricant and Sealant
Hercules Shutout Manhole Lubricant and Sealant from Oatey is a nontoxic, universal manhole sealant and lubricant that reduces inflow and makes manhole maintenance easier. It is applied to manhole frames to create a seal, enabling airtight and watertight frames and cover interfaces. It adheres to dry, wet, hot and cold surfaces, offering optimal protection in both freezing and high temperatures. In addition to inflow reduction, it promotes ease of use for waterworks contractors and municipalities. It requires no additional training and only takes a couple of minutes to apply, including preparation and cleanup. Applied with a caulking tube, it can be easily transported for use as part of regular operations and maintenance activities. It also makes it easier to open manhole covers, providing lubrication that prevents rust and corrosion between the two metal surfaces, thus decreasing the force required to open the cover. 800-321-9532; www.oatey.com
Sauereisen SewerSeal F-170
Sauereisen’s SewerSeal F-170 is a durable, calcium aluminate-based lining that prevents water infiltration to underground infrastructure. Its versatility allows for use in manholes and lift stations regardless of the type of substrate – concrete, brick or steel. It resists microbiologically induced corrosion common to the municipal environment. The combination of low permeability and high chemical resistance makes it a strong option for protecting or restoring structures within sewage collection systems. Spin-cast equipment utilized for a rapid installation process is standard. The equipment includes a pump and common spincasting head, allowing installation from ground level. This accelerates the rate of application and improves safety by minimizing confined-space entry. Following proper surface preparation, the product can be applied in one pass of variable thickness, ranging from 1/2 to 2 inches. It is moisture tolerant and requires no primer to attain a tenacious bond. 412-963-0303; www.sauereisen.com
Sealing Systems Flex-Seal 2.0
Flex-Seal 2.0 from Sealing Systems is an all-purpose sealant that adheres to many surfaces and has over 800% elongation. It is designed to prevent inflow/infiltration and to provide corrosion protection at the grade adjustment ring section or joint section of manholes and catch basins. It’s 100% safe and Prop 65 compliant. The internal seal is manually applied using a paintbrush and the kit is designed to cover 12 vertical inches on a 27-inch-diameter manhole. 800-478-2054; www.ssisealingsystems.com
The Strong Company Strong-Seal System
The Strong-Seal System from The Strong Company offers a variety of cost-effective engineered cementitious products designed to rehabilitate municipal concrete and masonry structures and effectively stop inflow, infiltration and exfiltration. When spray-applied to a minimum of 1/2-inch thickness, the cementitious mortars are an impervious monolithic liner with compressive and flexural strengths exceeding that of the original structure. Both MS-2A and MS-2C are fiber-reinforced spray-applied cementitious mortars. Made with Portland cement, MS-2A is the most cost-effective solution for stopping infiltration and restoring structural integrity. MS-2C provides high early strengths and added corrosion protection in mild sulfide environments. High Performance Mix is a pure-fused calcium aluminate mortar that stops infiltration, restores structural integrity, and protects against microbiologically induced corrosion in sanitary sewer systems with harsh sulfide conditions (pH of 1.0 or greater). 800-982-8009; www.strongseal.com
