Ice maker appliance and water filter

An ice maker appliance, the ice maker appliance comprising:

• an ice engine comprising a water supply opening;
• a flow control device;
• a lower reservoir comprising a supply outlet opening and a return opening;
• an upper reservoir comprising a supply inlet opening, an ice engine supply opening, a drain opening, and a water filter positioned at the upper reservoir;
• a water supply conduit fluidly coupling the upper reservoir to the ice engine, wherein the water supply conduit fluidly couples from the ice engine supply opening to the water supply opening, wherein the water filter is positioned fluidly upstream of the drain opening, the ice engine supply opening, or both;
• and
• an upper reservoir supply conduit fluidly coupling the lower reservoir to the upper reservoir, wherein the upper reservoir supply conduit fluidly couples from the supply outlet opening to the supply inlet opening, and wherein the flow control device is configured to selectively feed water through the upper reservoir supply conduit from the lower reservoir to the upper reservoir.