Abstract: A method and an apparatus for a repeatable dosing or metering of fluids and in particular liquids in a selectable and reproducible amount in which the fluid amount to be dosed is learned in a dosing operation effected manually once and stored in a retrievable way; the apparatus comprises a fluid line 2 for a fluid 1 including a fluid inlet 3 and a fluid outlet 4 between which a shut-off device 7 controlled by a control unit 8 is provided, an operation 5 and a memory input 9 a learning mode is initiated and that by once pre-dosing a corresponding quantity information is stored and that by operating the memory input 9 a dosing mode is initiated in which the fluid amount corresponding to the stored quantity information is dosed by the shut-off device.

Abstract: A thermostatically controlled mixer battery. The appropriate mixer battery having plate control means 2 comprising at least one rotatable control plate 24 for controlling the quantity of water delivered and manually actuable from externally by a user, the plate 24 having bores 243, 244 selectively alignable with hot and cold water inlet bores 233, 234 and a temperature control plate 25, which is thermostatically actuated and is sealingly displaceable relative to the quantity control plate 24, the plate 25 having bores 253, 254 formed therein which permit the hot and cold water to pass therethrough in a desired ratio to a mixing chamber 15.