The bench allows to determine the functional characteristics of toilets in accordance with current regulations (EN 977, ASME, AS, GB, MS, SASO, etc.). The bench has three working modes for opening and closing the solenoid valves of the water supply system and the discharge volume measuring container:- Manual: Manual control.- Semi-automatic: The solenoid valves remain open for a certain time (configurable)- Automatic: The actuation of several solenoid valves is chained (configurable)The system consists of a programmable controller, a man / machine interface, a pneumatic circuit and an electrical circuit.