MONOFORM by Hydro-Klean is a no-dig or trenchless rehabilitation process for restoring manholes via installation of a monolithic concrete liner. Restoration is accomplished by installing a custom-forming system within the existing manhole, leaving an annular space to be filled with a high-strength ready-mix concrete. The system includes various diameters to fit most structures, including concentric and eccentric cone configurations. It can be used on older brick or block manholes in need of repair, and eliminates the troubles associated with opencut replacement. The finished product withstands water traffic loads and has a design similar to that of installing a brand-new precast manhole, all without excavation, preventing community disruption, eliminating traffic detours, eliminating sewer bypassing, and preventing compaction issues. 855/845-5326; www.hydro-klean.com.