A refill system and method of use for a beverage dispenser. The refill system includes a fill tube coupled to the water bath generally at an upper portion to dispense water into the water bath. The tube is configured for coupling to a dispense nozzle of the beverage dispenser. The beverage dispenser can be operated to dispense water only when the fill tube is coupled to the nozzle. The beverage dispenser can be controlled to prevent dispensing of product into the water bath when the fill tube is attached to the nozzle. An overflow tube may be provided and may be used to monitor the level of water retained in the water bath.