Miller Underground Relies on Cherne Pipe Plugs for Sewer Inspection and Cleaning Operations

ONTARIO, CANADA — Established in 2020, Miller Underground offers an array of sewer infrastructure solutions designed to enhance functionality and extend the lifespan of sewer systems for its clients. The company’s services encompass catch basin cleaning, hydro excavation, CCTV inspections, and more, ensuring comprehensive support for all sewer maintenance needs.

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Serving municipalities, businesses, and homeowners, Miller Underground assists its clients in making informed decisions about the maintenance, repair, and enhancement of sewer systems. The ultimate goal is to prevent expensive emergencies and extend the life span of the underground infrastructure.

Recognizing the importance of reliable equipment in its projects, Miller Underground has harnessed the benefits of Cherne pipe plugs, showcasing their effectiveness and indispensability in enhancing the efficiency and safety of their operations. They understand that even the smallest components of their operations can have a significant impact on project outcomes.

Samantha Da Silva, the Combo Truck Operator and Shop Manager at Miller Underground underscores the importance of safety in their operations, stating, “Each day presents a unique challenge that requires the use of diverse testing equipment. Strict adherence to a checklist for handling pipe plugs is crucial rather than going on autopilot, as neglect can lead to catastrophic mistakes.”

Ensuring Pipeline Isolation During Sewer Inspections and Maintenance

Whether tackling a routine maintenance job on a smaller pipeline or an intricate infrastructure project involving larger sewer and water main systems, Miller Underground relies on Cherne Pipe Plugs for dependable and consistent performance.

“We own an assortment of Cherne plugs that cater to the varied pipe sizes we work with. Our stock includes plugs suitable for 200 millimeters up to the largest plug of 600 millimeters,” Da Silva explains. Alongside this, they use the Cherne Air-Loc Low Pressure Air Testing Control Panel during testing to observe compressor pressure, plug pressure, and test pressure.

Blocking plugs provide a reliable method for temporarily halting wastewater flow, which is essential for various sewer system operations. This enables the inspection team to thoroughly and accurately assess sewer line conditions without disruption, ensuring detailed and accurate diagnostics that inform maintenance or repair recommendations.

Following an inspection, plugs are also employed during sewer maintenance to remove debris or obstructions from the sewer networks. These plugs help isolate sections of the sewer for targeted cleaning and maintenance, ensuring that the rest of the system continues to function smoothly. Additionally, bypass plugs are used to maintain an appropriate flow within the systems, allowing for continuous operation of the sewage network while maintenance is being carried out. This dual functionality of blocking and bypassing ensures that sewer systems remain efficient and reliable, minimizing downtime and disruption to service.

Miller Underground has been using the Cherne 6-10 in. I-Series Test-Ball Plug for air pressure testing as part of the Port Lands Flood Protection Project in Toronto. This project entails creating a naturalized river valley, constructing new public spaces, roads, bridges, and utilities, as well as installing structures to regulate water flow and handle sediment and debris. Upon its scheduled completion in 2024, the project will facilitate the development of new neighborhoods in the Port Lands area.

Ensuring Safety and Training for Test Plug Usage

To ensure the safe and effective handling of Cherne pipe plugs and testing equipment, Miller Underground places a strong emphasis on proper training procedures. Following the guidelines outlined in the Cherne safety instructions manual, employees undergo rigorous training to understand the correct selection, inflation, operation, maintenance, and storage of Cherne test plugs.

“During the company’s initial stages, we had a Cherne representative come out to train us on proper use and safety guidelines of the various plugs and testing equipment,” Da Silva explains. This training covered back pressure determination, plug size selection, proper operation techniques, and the use of calibrated gauges to monitor pressure.

On the job site, employees adhere to their training by correctly selecting the appropriate plug size for the pipe being tested, cleaning and inspecting plugs and pipe openings, and maintaining a safe distance away from any potential hazards during testing. Once testing is finished and the plugs are depressurized, the crew can safely remove them from the pipe.

By following these safety protocols, Miller Underground ensures that its crew is capable of using Cherne pipe plugs and testing equipment safely and efficiently for all its underground infrastructure projects.

Miller Underground’s experience has confirmed that they can consistently depend on Cherne Pipe Plugs for their durability, reliability, and exceptional performance, regardless of the project’s size or complexity. Cherne’s dedication to providing superior equipment has significantly enhanced the efficiency and safety of Miller Underground’s operations.

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Part of the Oatey Co. family of brands, Cherne Industries (Cherne®) is the industry-leading manufacturer of test plugs and testing equipment for residential, commercial, industrial and municipal piping systems. Based out of its state-of-the-art headquarters in Shakopee, Minn., Cherne’s products are manufactured with an unwavering commitment to safety and quality.

Available via Oatey Co.’s distribution network throughout North America and through partner distribution on every continent, Cherne products are relied upon by residential and commercial contractors, as well as industrial and municipal engineers, worldwide.

For more information, visit, call 1-800-843-7584 or follow Cherne on LinkedIn.

Since 1916, Oatey has provided reliable, high-quality products for the residential and commercial plumbing industries, with a commitment to delivering quality, building trust and improving lives. Today, Oatey operates a comprehensive manufacturing and distribution network to supply thousands of products for professional builders, contractors, engineers and do-it-yourself consumers around the world.

Oatey is based in Cleveland, Ohio, and has locations in the United States, Canada, Mexico and China. For more information, visit, call (800) 321-9532 or follow Oatey on FacebookTwitterLinkedIn or Instagram.

John O’Reilly
Greenhouse Digital + PR
[email protected]

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The Cherne 6-10 in. I-Series Test-Ball Plug being used for air pressure testing.

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The Cherne Air-Loc Low Pressure Air Testing Control Panel is used to monitor compressor pressure, plug pressure, and test pressure during testing.

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Miller Underground relies on Cherne’s products for air pressure testing in the Port Lands Flood Protection Project, enhancing infrastructure for future neighborhood development by 2024.

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