Abstract: A water filtering and dispensing apparatus comprising a filtering device receiving unfiltered water under pressure from a water service system and operable to deliver filtered water and waste brine under pressure, a filtered water delivery line extending from the device to a dispensing valve, a storage tank with spaced brine inlet and outlet openings, a brine line between the device and the inlet opening, a pressure reducing regulator in the brine line upstream of the tank, a filtered water receiving inflatable bladder in the tank and means connecting the bladder with the delivery line upstream of the dispensing valve, a waste line connected with and extending downstream from the brine outlet opening in the tank, a flow limiting flow control means and a normally open bladder actuated shut-off valve downstream of the tank, said shut-off valve operable to close only when the bladder in the tank is filled with a full supply of filtered water, whereby flow of waters and brine into and out of the apparatus stops w

Abstract: A material dispenser comprising a material receiver, an elongate vertical material conducting duct communicating with and depending from the receiver and having a lower open discharge end, a vertically opening metering orifice in the duct, a valving member normally engaged in the orifice in a closed position and shiftable vertically to an open position, an armature freely engaged in the duct and shiftable upwardly therein from a lower normal position, means drivingly connecting the armature and the valve member, an annular coil about the duct and positioned so its field normally intersects the armature whereby the armature is drivingly elevated and the valve member is moved to its open position when the coil is energized, a power supply connected with and operable to cyclically energize the coil and including a half-wave rectifier in series with the coil and a resistor in parallel with the rectifier, whereby the coil is energized by pulsating direct current and supplemental alternating current.