The Thermaco Big Dipper Automatic Grease and Oil Removal System is an engineered system for separating free floating grease and oils from drain water flows. The separated grease and oils are trapped within the stainless steel tank and are automatically recovered by the system. Only the "cleaned" water is allowed to pass through the system into the drain lines. The Big Dipper can be used in a variety of applications from restaurant and food processing operations to industrial operations. Thermaco.