Abstract: An apparatus for raising a liquid aeration apparatus having a carrier element 62 which can be guided to a position engaging an air distributing pipe 36 to raise same by means of a guide rod 66. The movement of the guide rod is controlled by a guide device 64 disposed on the free end of a boom 52 suspended vertically above the air distributing pipe, such that the movement of the guide rod is restricted to a plane perpendicular to the air distributing pipe, thus preventing contact with and damage to aeration tubes 38 extending from the air distributing pipe.