The drive can be easily disconnected from the pump station by means of a clip closure. This allows filling from different containers with one drive at several stationary pumping stations, there is no change of media and the dip tubes do not have to be cleaned. The drive can be easily disconnected from the pump station by means of a clip closure. This allows filling from different containers with one drive at several stationary pumping stations, there is no change of media and the dip tubes do not have to be cleaned.