Comparing Monoform Solutions for Manhole Rehabilitation
HK Solutions Group's three Monoform™ services are all unique, proprietary structural manhole rehabilitation solutions that don't require open-cut excavation. They all represent cost savings with minimal interruption to surrounding utilities. They each have unique benefits and different recommended use cases, however.
Monoform PLUS™: Manhole Rehabilitation with Anti-Corrosion Benefits
HK's Monoform PLUS™ process is Monoform™ with the added benefit of AGRU corrosion-resistant HDPE plastic. HDPE manhole linings offer high corrosion resistance and long term durability when compared to traditional concrete manhole structures. Monoform+™ is a polyethylene manhole solution perfect for applications where standing water and high hydrogen sulfide concentrations rapidly deteriorate concrete manholes and structures.
Learn more about our Monoform PLUS™ solution:
Monoform HEX™: Manhole Installation with Hydro-Excavation
Monoform HEX™ allows for structural manhole construction in situations where excavation needs to be minimal and precise. The hydro-excavation process allows for advanced precision and reduced risk when working around delicate utilities. Monoform HEX™ is great for applications like levee projects, where surrounding soil needs to remain intact and undisturbed, and wetlands, where traditional excavation is not possible.
Learn About Monoform HEX™
Monoform™: A Trenchless Manhole Rehab Solution
Our original Monoform™ service is a cost-effective, trenchless approach to structural manhole rehabilitation- see this in action. The Monoform™ process involves assembling a plastic form inside a deteriorating manhole, pouring ready mixed concrete around the form and then removing the form. Monoform™ is an excellent solution for typical manhole repair and rehabilitation projects in situations that don't require additional fortification or hydro-excavation.
See Monoform™ in action:
Common Manhole and Sewer Problems
HK's manhole rehabilitation contractors are skilled at mitigating a wide variety of common manhole problems and restoring flow channels in aging sewer structures. Municipal and industrial customers often contact HK Solutions Group for assistance with one or more of the following manhole structure problems:
- Manhole leaking
- Cracked manholes
- Groundwater infiltration in sewers
- Manhole failure
- Failing sewer structures
- H2S (Hydrogen Sulfide) Concrete Corrosion
- And more
Our technicians use a variety of trenchless techniques to restore and reinforce manhole structures, as well as prevent future manhole problems from impacting the sewer system down the road. Mitigation and prevention are especially important for sewer systems suffering from inflow and infiltration (i&i) issues.
Inflow & Infiltration (I&I)
Inflow and infiltration refers to excess water that flows into sewer pipes from groundwater and stormwater. Groundwater typically seeps into sewer pipes and manhole structures with cracks, holes, faulty connections or other structural issues. Stormwater flows into manholes through holes in manhole covers, roof drain downspouts, foundation drains and drain cross-connections. Inflow and infiltration in sewer systems and manhole structures can typically be resolved with structural manhole rehab.
HK Solutions Group offers a variety of inflow and infiltration solutions such as our Monform™ and Monoform PLUS™ processes. Monoform PLUS™ is especially useful in areas where hydrogen sulfide corrosion exacerbates the concrete deterioration process.
Hydrogen Sulfide (H2S) Challenges
In certain geographic areas, high concentration of hydrogen sulfide in the groundwater can cause rapid concrete deterioration and manhole failure. HK Solutions Group offers H2S corrosion protection with our Monoform PLUS™ manhole rehab solution. Monoform PLUS™ leverages the corrosion-resistant power of HDPE plastic to reinforce and seal leaking manholes. Monoform PLUS™ is a long-term solution to combat H2S corrosion and prevent manhole infiltration.
Sulfuric Acid Corrosion
Just as city sewers face maintenance challenges in areas where acidic groundwater corrodes sewer infrastructure, industrial facilities face similar issues. Many factories and facilities handling caustic chemicals have process-water discharge systems with high sulfuric acid content that corrodes subsurface infrastructure over time, leading to infiltration, inflow and other issues. Learn how HK's manhole rehabilitation solutions helped one industrial facility rehabilitate corroded concrete manholes without causing disruptions to business.
Sewer Rehabilitation & Repair of Other Structures
We can do so much more than just manhole lining and rehabilitation. In addition to our focus on Monoform+™, Monoform HEX™ and other manhole rehabilitation techniques, HK Solutions is a trusted pipeline inspection company, offering CCTV inspections and pipeline rehab services, including Cured in Place Pipe (CIPP) lining.
The HK Solutions team can inspect and repair all types of sewer structures, and we offer a number of other industrial and municipal services.
Contact HK Solutions Group
Our sewer experts are ready to take on manhole sealing and leak repair, structural manhole rehabilitation, HDPE manhole lining for corrosion protection, sewer lift station repair and more.
If you want more information about HK Solutions' manhole rehab services, Monoform™, Monoform PLUS™, Monoform HEX™ or our repair options for other sewer structures, reach out to us or schedule a lunch and learn. Our goal is to keep the sewer system functioning properly so communities can enjoy uninterrupted sanitary services. Send us a message or give us a call at (855) 845-5326.