Patent ID: 8413952

Claim:
A method for controlling a water supply in a sanitary installation comprising: a) a cold water supply line and a hot water supply line; b) a valve battery, which is connected to a power supply and which is provided for at least partially opening and/or mixing the water supply from the two water supply lines, c) a sensor unit comprising at least one trigger means and being connected to the power supply; and d) an electronic controller that is connected to the sensor unit, to the power supply, and to the valve battery; wherein the at least one trigger means is connected to the electronic controller and is capable of outputting an action signal to the electronic controller, the action signal differing in potential and/or quality from a rest signal which is outputted by the trigger means to the controller without action of a user on the trigger means; wherein each time when a user activates the trigger means, an action signal is outputted by the trigger means to the electronic controller, which electronic controller in turn assigns an individual time slot to the action signal and the valve battery is opened, after expiration of a last individual time slot which at least follows a first action signal and within which there is no further action signal, for the duration of a variable time interval, wherein, after at least one further action signal is triggered by a user by repeatedly activating the trigger means within such an individual time slot, the controller outputs a command which causes the valve battery to change a temperature and/or a flow value of the water supply to the sanitary installation in relation to the number of the further action signals triggered by the user and registered and processed by the electronic controller, and wherein, after expiration of the last individual time slot assigned to a last action signal, to release the supply of water of the selected temperature and/or the selected flow value into the sanitary installation.