Patent ID: 7722725

Claim:
A sump assembly of a dishwasher, comprising: a sump housing storing water therein; a pump coupled with the sump housing to pump the water; a guide assembly provided within the sump housing to guide the pumped water to a sprayer, and a drain chamber configured to filter contaminant from the water drained from the guide assembly, wherein the drain chamber is connected to a drain pump for draining the water, while dishes are washed, the water circulates in the guide assembly, and while the water is drained, the sump housing and the guide assembly communicate with each other by the operation of the drain pump so as to drain the water from the sump housing and the guide assembly, wherein the water returns to the guide assembly via the drain chamber, and wherein the drain chamber is provided within the sump housing and situated below the guide assembly, wherein the guide assembly is configured to bypass a portion of the pumped water to the drain chamber, and wherein the guide assembly further comprises a soil chamber communicating with the drain chamber to additionally filter the contaminant from the water drained from the drain chamber.