Before any of us worked around sewers and storm drains, we hardly gave a second thought to manhole covers in the street. But a funny thing happens when you enter the world of pipeline cleaning, inspection and rehabilitation: you begin to notice every manhole cover.
Suddenly, a world that was once completely invisible comes to life. You begin to identify the markings on manhole covers as being either sewer or a storm drain and find great pleasure in sharing this knowledge with others. Even on a family outing at Disneyland, you can’t help but spot the manholes and boastfully point them
