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The purpose of the dregs filter is to wash and dewater the dregs. The primary element of a dregs filter is a large compartmentalized cylinder or drum with a fine mesh screen or wire covering the outer surface. A vacuum is maintained within the drum. The drum is partially submerged in a vat of dregs and liquor. An agitator in the vat keeps the dregs from settling. As the drum rotates through the dreg slurry, the mixture is pulled onto the outer wire of the drum. The liquor flows through the wire and into the drum, and a cake of dregs forms on the outer surface. Once out of the slurry, the vacuum continues to pull liquor out of the cake.