The invention relates to an arrangement for supplying water to a dialysis device, characterized by a flow chamber that is connected by the top piece to a distribution line of a central water treatment device via a control valve. The flow chamber comprises the following additional functional elements: a connection in the lower region of the flow chamber for a supply connector line and a connection for a return connector line of the dialysis device, preferably a line branching away from the lower region of the flow chamber and leading to a drain via a valve； a line branching away from the upper region of the flow chamber and leading to a drain via a valve； and at least one fill sensor for measuring/monitoring the fill level. Thus, the connection of the dialysis device to the distribution line is structured such that the connector line connecting the dialysis device to the distribution line is included in the disinfection of the individual dialysis device without the disinfection fluid entering the distribution line.
