Abstract: Improvements in pot and pan washing machines (as opposed to dishwashing machines and drinking glass washing machines); a device adapted to receive large pots and pans used in cooking operations in a restaurant or the like which is downstream, typically, in the work process of cleaning pots and pans, from an initial scraping and scrapping tank, then, typically, is followed by a rinsing tank, the latter then followed by a sanitizer tank; a pot and pan washer tank utilizing a multiplicity of relatively high velocity, underwater, spaced apart water input jets on one wall thereof which provide a tank-wide circulating flow from upper back to lower front and then upwards and back within the tank from the front wall, the jet nozzles being positioned below the operating water level, there preferably being an overflow opening above the jet nozzles and pipes associated therewith, a pump circulating water from a lower portion of the tank at one side thereof to the noted jet nozzles, a faucet being preferably provided abo