Sanitary system with a) a mixing centre, which is connected on the input side to a hot water pipe and a cold water pipe and on the output side to a plurality of mixing pipes (4.1, 4.2, 4.3) routed to loads (5.1, 5.2, 5.3), and wherein b) the mixing centre comprises several controllable mixing units (4.16, 4.15, 4.26, 4.25, 4.36, 4.35) for the controllable supply of water from the cold water pipe and/or the hot water pipe into the mixing pipes (4.1, 4.2, 4.3), c) per load (5.1, 5.2, 5.3) an operating device (10.1, 10.2, 10.3) for entering a parameter value such as, in particular, the temperature, the pressure, the flow rate and/or the flow quantity, and d) a control centre which controls the controllable mixing unit (4.16, 4.26, 4.36, 4.15, 4.25, 4.35) on the basis of the respective parameter value, e) characterised in that the loads each comprise an electronic memory for storing a load identification and a communication module which is respectively connected to a corresponding communication module of the control centre and via which the transmission of the load identification, relating to the load, to the control centre is carried out, f) which takes into account the control centre for controlling the controllable mixing unit (4.16, 4.15, 4.26, 4.25, 4.36, 4.35), g) wherein the control centre comprises hereto a data memory in which a list of possible respectively permissible loads is stored, and a table for assigning load identifications to permissible operating values of the respective load (5.1, 5.2, 5.3), h) and that the sanitary system automatically activates the loads if they have not been active for a longer period of time in order to prevent an increase in legionella in such a way that the system flushes itself from time to time and thus prevents an increase in the number of legionella. a) a mixing centre, which is connected on the input side to a hot water pipe and a cold water pipe and on the output side to a plurality of mixing pipes (4.1, 4.2, 4.3) routed to loads (5.1, 5.2, 5.3), and wherein b) the mixing centre comprises several controllable mixing units (4.16, 4.15, 4.26, 4.25, 4.36, 4.35) for the controllable supply of water from the cold water pipe and/or the hot water pipe into the mixing pipes (4.1, 4.2, 4.3), c) per load (5.1, 5.2, 5.3) an operating device (10.1, 10.2, 10.3) for entering a parameter value such as, in particular, the temperature, the pressure, the flow rate and/or the flow quantity, and d) a control centre which controls the controllable mixing unit (4.16, 4.26, 4.36, 4.15, 4.25, 4.35) on the basis of the respective parameter value, e) characterised in that the loads each comprise an electronic memory for storing a load identification and a communication module which is respectively connected to a corresponding communication module of the control centre and via which the transmission of the load identification, relating to the load, to the control centre is carried out, f) which takes into account the control centre for controlling the controllable mixing unit (4.16, 4.15, 4.26, 4.25, 4.36, 4.35), g) wherein the control centre comprises hereto a data memory in which a list of possible respectively permissible loads is stored, and a table for assigning load identifications to permissible operating values of the respective load (5.1, 5.2, 5.3), h) and that the sanitary system automatically activates the loads if they have not been active for a longer period of time in order to prevent an increase in legionella in such a way that the system flushes itself from time to time and thus prevents an increase in the number of legionella.