Manholes are vital components of the wastewater infrastructure. In recent years, inventive manufacturers have developed accessories that improve on the basic structure and make working around manholes easier and safer. Here is a look at some of the more recent innovations.Lid-Lifting SystemThe Magnetic Manhole Cover Lift System from Industrial Magnetics Inc. helps one person move and replace manhole lids quickly and safely, significantly reducing injuries and disabilities caused by traditional prying and lifting.Two deep-reaching PowerLift rare earth magnets attached to a spreader bar and lift dolly allow one operator to lift and move covers up to 36 inches. Smaller covers
