there is disclosed an industrial washing machine which includes a casing with a lid , a liquid reservoir within the casing and a collecting area associated with the reservoir . the washing machine further includes a cover adapted for covering the collection area and the liquid reservoir . cooperating with the cover is a filter assembly which is disposed within the casing . further , an assembly is included which effects the movement of floating grease and oil from the liquid within the reservoir . this floating grease and oil is directed by the assembly towards a fixed point within the casing for collection and eventual removal .