Abstract: A tamper-resistant control unit for an automatic faucet comprises a case having separate compartments therein for receiving a solenoid-activated valve and a circuit board and battery pack, respectively.

Abstract: A spout assembly for an automatic faucet that is easily assembled and tamper resistant has a transmitter and a receiver for use in detecting the presence of objects near the spout. The hollow spout body has an inlet opening and an outlet opening. A unitary waterway fitting is permanently fixed in the outlet opening of the spout body. The waterway fitting has a water passage therein and a sealable compartment for receiving and orienting the transmitter and receiver.

Abstract: A valve assembly is disclosed which is adapted to fit existing valve bodies. A flexible diaphragm assembly positioned within the valve body seals against a cylindrical barrel of the valve body. A central tube positioned within the central barrel defines a bypass passage extending from an upper chamber above the flexible diaphragm assembly and communicating with a bypass orifice. A sealing mechanism operated by an automatic control mechanism is adapted to selectively seal the bypass orifice. The automatic control mechanism includes a proximity sensor.

Abstract: An automatic grease interceptor for separating grease, fats and oils from wastewater is disclosed. The interceptor includes an interceptor chamber having an inlet, an outlet chamber with an outlet and a removable baffle positioned within the interceptor chamber. A grease removal device is attached to the interceptor chamber for removing accumulated grease from the interceptor chamber. A grease level sensor is positioned within the interceptor chamber at a first threshold level, wherein an indication of grease at the first threshold level by the first grease level sensor will activate the grease removal mechanism to thereby automatically remove grease from the interceptor chamber.