LiquiForce - Solutions

Lateral Lining



Preparation is a critical part of our lateral lining installations. Our PFM (Prep-From-the-Main) tools are inserted into the lateral from within the mainline sewer to remove the roots, calcite, blockages, obstructions and other debris. The PFM uses a combination of reamers, flushers, nozzles, and CCTV cameras to clean the laterals through remote means. 

The PFM tools also consist of a remote measuring process for determining the diameter of a lateral at every point along its length. This allows our teams to build a customized CIPP liner for a specific residence or business address. The PFM does not require a bypass of the mainline sewer, cleanout access or residential access to facilitate the process. All work is completed through existing manholes in the municipal right-of-way.

Our Measure from the Main (MFM) process utilizes a linear variable displacement transducer (LVDT) to transmit data back to the control system. Running hundreds of diameter checks per linear foot, the LVDT system averages the sizing and determines the appropriate lateral tube sizing for manufacturing.

The liner is ambient-cured and does not require other energy sources such as hot water or steam to achieve full cure. Lateral reinstatement is not needed with the junction liner installation process. Once the liner is installed, the installation bladder is removed and the line is placed back into service.

Mainline CIPP

Cured-in-Place Pipe
Our most widely used solution is our proprietary Inliner Cured-in-Place Pipe. CIPP is a proven, cost-effective no dig solution for problems normally associated with leaking or deteriorated pipelines.

An LiquiForce crew will oversee the cleaning and televising of the existing pipeline to determine exact pipe diameters and pipe condition. The crew will then order a lining tube that is custom manufactured for the project and delivered to the jobsite, ready for installation. These tubes are designed as a fully structural pipe or can serve as an interior infiltration barrier only.
Immediately following a second thorough pipe cleaning, the crew will install the resin-saturated liner via manholes or other designated access points using one of two proven methods: direct inversion (ASTM F1216) or pulled in place (ASTM F1743).
Once the liner is in place, the workers apply hot water, steam, or UV light to cure the segment. The length of time required for this process is dependent upon diameter and length, but is typically achieved in a matter of hours. Crews then cut the ends, reinstate the customer lateral services from inside the pipe, and active use of the renewed pipeline can begin.

The Importance of a Proper Cure
In addition to continual monitoring of temperature readings at boiler trucks, our team has implemented new fiber optic monitoring technology. Where earlier efforts provided readings at intervals of 200 to 300 feet using thermocouple measuring devices at manhole access locations, our thermal imaging system now enables the monitoring of the curing process along the entirety of the pipe run at 6-inch intervals. 

These readings can be monitored remotely by the project manager at an off-site office location, further ensuring a successful installation.


While traditional felt-based liners continue to offer reliable solutions in today’s marketplace, fiberglass UV-cured liners can be a valued alternative.


After thoroughly cleaning the host pipe, installation crews pull the UV liner into place. A protective sliding film or glide foil can be used in significantly deteriorated lines to aid in the pull-in process and to further protect the liner. Both ends of the liner are then sealed with protective end caps and air pressure is introduced, allowing the liner to expand into place. Workers then run a UV light train through the line at a controlled, pre-configured speed of up to 6 feet per minute to cure the liner.


Cameras on the train allow for viewing of the alignment and fit—both before and during the cure process. This computer-monitored process collects and stores data relevant to temperature, pressure and rate of conveyance to ensure proper curing of the installed liner. When complete, the laterals can be reinstated using a remote-controlled cutting unit or via man entry in larger diameter pipelines.


Using a spin caster or low-pressure hand-sprayer, our crews apply a consistent and evenly coated layer of geopolymer material from the top to bottom of the structure. Following the coating, crews use trowels to smooth out the finish. Once applied to the damaged or deteriorated surface, the geopolymer material quickly forms into a crystalline structure for higher resistance to acids, lower porosity and greater surface durability.

Inliner site crews can complete preparation and installation for each segment in the same day, eliminating lead time for ordering materials. Typically, the application of the geopolymer coatings require one pass, in the range of thickness of .5” to 1.5”, with a maximum thickness of approximately 3”. The quick cure rate shortens bypass time and allows flows to be re-established much quicker than Portland cement-based mortars.

Manhole Renewal

Manhole Renewal Applications

We perform manhole renewal installations using both Cured-in-Place Manhole (CIPMH) and a variety of cementitious, epoxy-based applications. 

Our NASSCO-certified superintendents provide extensive manhole inspections, which is the first step in determining the best application(s) for improving sewer system performance. These comprehensive inspections provide a concise evaluation of the state of the structure, spanning from the cover/frame to the bench and base.

CIPMH Installation
Our CIPMH liners are customized to fit manholes and related structures constructed of brick and mortar, pre-cast concrete or block. Inliner crews can complete preparation and installation in the same day, eliminating lead time for ordering materials. The liner will cure under ambient temperature and pressure in one to two hours.

Epoxy Installation
Prior to applying the epoxy product, the Inliner team performs a visual assessment of the manhole structure, then cleans the surface using water blasting. Cracks and damaged areas are patched, and if the damage is severe, a cementitious underlay is applied. The epoxy is applied with a hand-spray gun with a technique called cross-hatching, or “boxing,” to ensure even coverage and thickness. Final thickness can range from 80-125 mils or more per application.

From private industries whose profitability depends on long-lasting potable water systems, to public utility departments that manage water and sanitary sewer systems, LiquiForce offers OBIC customizable solutions that are proven to extend the life of water and wastewater structures for 50 years or longer.


OBIC Products

OBIC products are spray applied and cure in minutes, requiring minimal disruption to services. They also offer the versatility to do everything from restoring the structural integrity of a deteriorating manhole or extending the life of a wastewater treatment plant and potable water tank. With proven, cost-effective, and customizable applications, it is no wonder that businesses and municipalities across the world are choosing OBIC.

When it absolutely, positively must last, you can rest assured that OBIC products are:

  • Backed by a team of chemists who ensure consistent quality
  • ISO 9001:2015 Certified Manufacturing company
  • Proven to be physically stronger
  • Include potable water system solutions that are approved for NSF/ANSI 61 barrier material
  • Are applied with minimal downtime and greater protection than thinner, more rigid materials
  • Offer significantly longer service life, allowing for a greater return on investment
  • Customizable to provide solutions for customers with unique needs

Manhole Renewal


LiquiForce engineers creative and complex sewer bypass systems. Our solutions:

  • Ensure environmental protection 
  • Provide extra capacity for heavy rainfall events
  • Save project time and money