A fascinating view from Digg of the men who service the fetid sewers of Mumbai. These lower caste men unclog the sewers while dealing with toxic gasses in a confined space, industrial waste, a complete lack of protective equipment, along with all of the other hazards that go along with sewer work. Each day Mumbai produces enough sewage to fill 4,500 Olympic-size swimming pools. Eighty percent of sewer workers die before the age of 60 and 25 men die every month.