Dishwasher comprising: a substantially box-shaped washing chamber , comprising a bottom wall and an opening; two crockery baskets placed one above the other and slidably inserted in the washing chamber and arranged to come out, at least partly, from the opening of the washing chamber in order to receive crockery; a pump connectable to a source of washing liquid, connected to a delivery pipe placed beneath the bottom wall of the washing chamber ; the delivery pipe being in fluid communication with a feed pipe placed inside the washing chamber ; associated with each crockery basket a respective main sprayer device , each main sprayer device placed underneath the respective basket and arranged to spray water towards the respective basket , wherein each main sprayer device is rotatable about a first rotation axis (X1), placed inside the washing chamber and in fluid connection with the feed pipe in order to supply washing liquid inside the washing chamber ; at least one auxiliary sprayer device having smaller dimensions and capacity relative to the main sprayer devices , which is rotatable about a second rotation axis (X2) that is different from the first rotation axis (X1) and in fluid communication with the pump ; a supply pipe placed in fluid communication with the delivery pipe and the auxiliary sprayer device in order to supply the auxiliary sprayer device with washing liquid; characterised in that no shutoff valves are placed along the hydraulic route which connects the pump to the main sprayer devices ; and that the supply pipe is developed beneath the bottom wall of the washing chamber . a substantially box-shaped washing chamber , comprising a bottom wall and an opening; two crockery baskets placed one above the other and slidably inserted in the washing chamber and arranged to come out, at least partly, from the opening of the washing chamber in order to receive crockery; a pump connectable to a source of washing liquid, connected to a delivery pipe placed beneath the bottom wall of the washing chamber ; the delivery pipe being in fluid communication with a feed pipe placed inside the washing chamber ; associated with each crockery basket a respective main sprayer device , each main sprayer device placed underneath the respective basket and arranged to spray water towards the respective basket , wherein each main sprayer device is rotatable about a first rotation axis (X1), placed inside the washing chamber and in fluid connection with the feed pipe in order to supply washing liquid inside the washing chamber ; at least one auxiliary sprayer device having smaller dimensions and capacity relative to the main sprayer devices , which is rotatable about a second rotation axis (X2) that is different from the first rotation axis (X1) and in fluid communication with the pump ; a supply pipe placed in fluid communication with the delivery pipe and the auxiliary sprayer device in order to supply the auxiliary sprayer device with washing liquid; characterised in that no shutoff valves are placed along the hydraulic route which connects the pump to the main sprayer devices ; and that the supply pipe is developed beneath the bottom wall of the washing chamber . <EOS>