Sewer Divers
A down-and-dirty, up-close look at the rugged, blue-collar heroes that keep America's centuries-old sewer systems running so the rest of us can stay out of the muck and the mire.


An abandoned sewer line is overwhelmed by stagnant human waste; the damage from a massive sinkhole threatens to shut down the entire city's sewer system; a large clog could take down a city building.