Automatic professional warewashing machine with improved water supply circuit

The present invention refers to an automatic warewashing machine, in particular of the type intended for professional applications. The machine according to the invention comprises at least a water inlet fitting (1) for the connection of said warewashing machine to the water supply, a device (3) containing water-softening resins, a separation chamber (4), a washing vessel (7), and a reservoir (13) for storing the salt required for regenerating said resins and restoring the efficiency thereof, said reservoir (13) being fluidly connected to said water-softener device (3) via a fluid regeneration circuit (11). A basic feature of the invention is that said reservoir (13) is separate from said washing vessel (7), and is further connected fluidly to means (15) provided to empty it via a fluid emptying circuit (16).