Manhole adjustment system

Company’s Manhole Shield removes installation guesswork from final adjustment while affording what product engineers contend are immediate cost-savings by simplifying the process for long-term EP-Manhole-400
durability, reliability and safety. The system incorporates concrete grade rings, underground mortar, masonry shim strips and an impermeable barrier, promoting proper installation and reducing routine maintenance.

“Manhole adjustment is an essential part of any municipal sewer and water project, and it can be difficult to achieve consistent results with the variety of products available to city engineers,” says Eull’s Manufacturing President Joe Eull. “Rather than taking a piecemeal approach to a project, the Manhole Shield is a comprehensive system with high-quality components designed to function with one another. In addition to simplifying the installation and maintenance process, a cohesive system eliminates the variables that can lead to failure.” Along with best-practice installation techniques, he adds, ensuring a proper “fit and finish” is critical for success and durability in any manhole-finishing job.

The Manhole Shield encompasses: 1) concrete grade rings, which allow for precision leveling and maximum strength; 2) I-and-I barrier, a polyethylene barrier that is puncture-resistant and prevents moisture and sediment from infiltrating the manhole; 3)  TCC Materials Underground Utility Mortar, a prepackaged, air-entrained formulation  durable through the freeze/thaw cycle and quickly prepared with potable water; and, 4) high-impact plastic shims, which provide consistent, predictable performance and allow every concrete ring to serve as a slope ring, thereby allowing precise manhole leveling no matter the slope of the street.  —  Eull’s Manufacturing Co., St. Michel, Minn., 763/497-2742;