I worked for a company cleaning metal chips and sludge from coolant sumps. Working in tight spaces and absolutely gut wrenching stench. The sludge clogs your pores and the metal chips cut their way through your clothes and you find them in the least likely places. The company recycles grinding and cutting fluids for the metal working industry. Twice a year the machines have to be drained and the sumps scrubbed to prevent dangerous bacteria from building up. This is absolutely a "Dirty Job." Someone ought to check it out. Company's name is Coolant Management Services.

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