g syrup, the constant volume flow regulator 16 delivering syrup at a constant volume level, the rotator drive motor 22 which is provided in the constant volume flow regulator 16 and drives the rotator which delivers syrup at a constant volume level, the syrup electromagnetic valve 17 which opens and shuts the syrup feed line 18, the multi-valve 19 which mixes liquids such as syrup, diluting water,