Gorman-Rupp’s Unit 608 Tankleenor provides quick, efficient and economical cleaning of below-ground petroleum storage tanks. Even when tanks are thought to be free of moisture and foreign debris, they often contain enough water and other contaminants to degrade the stored product. The Gorman-Rupp Unit 608 Tankleenor can remove contaminants like gel precipitates, microbial growths, rust and water without disturbing the product or taking the tank out of service. This is a lightweight, wheel-mounted pumping unit designed for one-man operation and easily moved from job to job. At the heart of this unit is a Gorman-Rupp “O” Series self-priming centrifugal pump. It has the same quality and design features that have proven so successful in bulk plants and in fuel oil and aviation fuel delivery service.