Abstract: A fluid filling system has a filling unit which is repositionable with respect to a filling station. The filling unit includes a filling head and a dispensing switch. The filling station has a filling position at which a container may be placed for filling with fluid. A container fill sensor is provided at the filling position so that it may detect the degree to which a container is filled. A movable switching member is also provided on the filling station, and it communicates with the container fill sensor and moves to different positions in accordance with the degree to which a container at the filling position is filled. The filling unit is repositionable with respect to the filling station so that the filling unit may be situated adjacent the filling station with its filling head situated over the filling position, or may be moved to allow the filling unit to rest at other locations. When the filling unit is resting adjacent the filling station with its filling head situated over the filling position (i.