Abstract: A liquids collection unit is provided for the collection of liquids, including spent grease in food preparation establishments. The unit includes a housing that surrounds a tank. Coupled to the tank are a suction hose and a motor, which creates a vacuum in the tank to draw liquid into the tank when the hose is disposed in liquid. The suction motor of the device is disposed on a detachable plate on the tank. Sensors located within the tank monitor the liquid level of the liquid in the tank. A down-tube from the detachable plate terminates in a dimpled protuberance in the bottom of the tank. A heating element disposed near the bottom of the tank provides for the circulation of liquids in the tank during periods when the liquids are being stored.