Introduction & Problem A major automotive gasket manufac- turer uses cooling tower water for cooling of the molding machines. The two cooling towers at the plant peri- odically get contaminated with oil from the air scrubbers. While the oil passes through the existing PEP sand filter at tower number one, it will set- tle in low flow areas and contaminate the process piping and coolers of the molding machines. PEP was contact- ed to help solve the

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