Abstract: A device for aeration of a liquid vessel comprising at least one guide rail /2/ and a plurality of sliders /3/ arranged thereon and the sliders /3/ include holders carrying at least one hose of which at least a portion is perforated and the device further comprises pulling means for pulling the hose /5/ into the empty or liquid containing vessel to its working position. The hose /5/ is movable along its axis with respect to said holders /4/ wherein the holders /4/ have a closed circular shape and their sliders /3/ are connected to pulling means /6/.