Abstract: A laundry appliance includes a cabinet, a drum, a heat exchanger, a sump, a removable, gravity-fed fluid bottle, and a fluid level sensor. The drum is rotatably supported within the cabinet and defines a laundry compartment therein. The heat exchanger is disposed in the cabinet. The sump is disposed in the cabinet below the heat exchanger and positioned to collect condensed water vapor falling from the heat exchanger. The removable, gravity-fed fluid bottle is slidingly received in the cabinet below the heat exchanger and is positioned in fluid communication with the sump. The fluid level sensor is positioned in the sump and configured to pause operation of the laundry appliance when a fluid level detected in the sump exceeds a threshold fluid level.