Waste oil suction is carried out by an air operated vacuum pump with no moving and no wear parts, using a suction lance or adapter inserted into the motor oil dip-stick tube Gravity collection is carried out using a 20 litres capacity, height adjustable and oversized, collection bowl with an anti-splash grid Once the vacuum inside their tank is created, then these units can be used as autonomous units, disconnected from the air supply The units are discharged through a discharge hose, pressurising the unit at 3.5 psi with a tyre inflator; includes a safety valve that prevents over pressure Suction time with HOT oil (70/80c) and probe diameter 6mm, is 1.5-2 litres per minute Suction hose: 2m; Drain hose: 2m Working pressure vacuum / discharge: 100-145psi / 70psi