Patent ID: 7681580

Claim:
A water recirculator in a dishwasher, comprising: a sump for holding water; a water supply pump connected to the sump and pumping the water; at least one filtering unit precipitates or filters contaminants in part of the water pumped by the water supply pump in the order proportionate in size or weight of contaminants; and, a spray arm spaying a remaining part of the water pumped by the water supply pump wherein the filtering unit includes a precipitating space and two filters, wherein the precipitating space is located below the filters, wherein the part of the water pumped by the water supply pump flows into the precipitating space before passing through the filters and wherein one of the filters is coarser than the other filter and the coarser filter is located below the other filter, and wherein the part of the water pumped by the water supply pump passes through the precipitating space, the coarser filter and the other filter sequentially.