Patent ID: 8342194

Claim:
A conveyor ware washer, comprising: at least one wash zone having wash nozzles for spraying wash liquid and a wash liquid re-circulation path that includes a wash tank for collecting at least a part of sprayed wash liquid and a wash liquid supply pipe with a pump for feeding wash liquid from the wash tank to the wash nozzles; a final rinse zone with final rinse nozzles for spraying final rinse liquid fed from a final rinse liquid supply device, the final rinse zone downstream of the wash zone; a transportation device for carrying wares through the wash zone and final rinse zone in a transport direction from the wash zone to the final rinse zone; wherein the wash zone and final rinse zone are interconnected with each other to form a liquid cascading system, in which sprayed liquid flows from the final rinse zone to the wash zone; characterized by a water treatment device connected for receiving and treating sprayed wash liquid from the wash zone, the water treatment device configured in such manner that the treated liquid is of potable quality of water from the microbiological point of view, and the water treatment device connected for releasing the treated liquid to the final rinse liquid supply device, where the final rinse liquid supply device is connected to feed final rinse liquid, which is formed at least partly by the treated liquid, to the final rinse nozzles of the final rinse zone, wherein the final rinse liquid supply device includes a boiler from which final rinse liquid is fed to the final rinse nozzles, the boiler including a fresh water supply input line, the boiler further including a treated water input line running from the water treatment device and, connected to release the treated liquid into the boiler for mixing with fresh water and for heating prior to the treated liquid being delivered to the final rinse nozzles.