The Twister® Multi-Purpose Manway featuring a Submerged Jet Mixer (patent pending) Case Study - Twisters cleaning Large Crude Oil Tank A major refiner used 7 Twisters to clean a crude oil tank when it was taken out for emergency repairs. The tank is 290’ D and has a cone-bottom floor. The tank had varying solids depth, from 12”-36” (25,000-30,000 bbls), with ~10,500 bbls in the cone. They went from “oil down to gas free” in <2 we

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