WARE WASHER HAVING A DIRT DISCHARGE SYSTEM

A ware-washer includes at least one wash system (51, 52) and a dirt catching system (70). The dirt catching system has a tank cover filter (20; 20-1, 20-2) configured to separate dirt particles from sprayed wash liquid which flows back into the wash tank (14; 14-1, 14-2) due to gravity. The dirt catching system includes a dirt collection region (71) which is arranged at least in part in the wash tank and is upwardly open for collecting the dirt particles separated from the wash liquid by the tank cover filter. A dirt discharge system connected fluidically to the dirt collection region includes a dirt discharge pipe system (72; 72-1, 72-2) for emptying the dirt collection region when required. The dirt collection region includes a pressure equalizing system (90) for equalizing a negative pressure which builds up locally in the dirt collection region when the dirt collection region is emptied.