Freeze prevention in stand-alone ice making appliance

A stand-alone ice making appliance defining a vertical direction, a lateral direction, and a transverse direction, wherein the vertical direction, the lateral direction, and the transverse direction are mutually perpendicular, comprising:

• a casing;
• a first water tank disposed within the casing;
• a second water tank in fluid communication with the first water tank;
• a pump disposed within the casing, the pump in fluid communication with the first water tank and the second water tank, the pump operable to flow water from the first water tank to the second water tank;
• an ice maker disposed within the casing, the ice maker comprising an inlet;
• a fitting comprising a first port, a second port below the first port in the vertical direction, and a third port between the first and second ports in the vertical direction;
• and
• a flexible tubing conduit comprising a first tube extending from the first port of the fitting, a second tube extending from the second port of the fitting, and a third tube extending from the third port of the fitting,
• wherein the first port of the fitting is in fluid communication with the second water tank, the second port of the fitting is in fluid communication with the first water tank, and the third port of the fitting is in fluid communication with the inlet of the ice maker, and
• wherein the third tube of the flexible tubing conduit comprises an internal diameter greater than one or more of an internal diameter of the first tube and an internal diameter of the second tube.