Laundry appliance having an impeller with a removable filtration structure

A laundry appliance comprising:

• a drum that is rotationally operable within a tub;
• and
• a rotator that is rotationally operable relative to the drum, the rotator comprising:
• an impeller that is axially fixed with respect to the drum and including a receiver;
• a removable agitator that is selectively coupled with the receiver;
• and
• a filtration structure that is defined by the receiver and operable between a first filtering position characterized by the removable agitator being in an installed position, and a second filtering position characterized by the removable agitator separated from the receiver, wherein the filtration structure includes a filter cartridge that is disposed within the receiver having a plurality of flow apertures, wherein attachment of the removable agitator moves the filter cartridge to the first filtering position defined by a movement of process fluid through the plurality of flow apertures, and wherein separation of the removable agitator from the receiver moves the filter cartridge to the second filtering position defined by a removable cassette interfering with the plurality of flow apertures and the movement of the process fluid through a top set of filtering apertures of the filter cartridge.