Apparatus and method for collecting a floatable liquid

An apparatus for collecting a lighter fraction floatable liquid from a heavier fraction liquid, such as a lighter fraction floating oil from a heavier fraction water, the apparatus comprising:

• a floatable collecting container with an open top, a first discharge for removal of the lighter fraction collected liquid from the collecting container connecting to the container at a distance of the open top, and a second discharge for removal of collected heavier fraction liquid connecting to the container at a larger distance of the open top than the first discharge;
• at least one pump placed in the collecting container for removal of liquid from the collecting container through at least one of the discharges, wherein
• the floatable collecting container is provided with an open top and a cover is fixedly connected above the collecting container such that a passage slot with a continuous dimension results between the collecting container and the cover, and that the apparatus also comprises an inlet adjustment ring that is movably connected to the floatable collecting container and the cover, such that the inlet adjustment ring is displaceable between a closing position wherein the inlet adjustment ring at least substantially closes the continuous passage slot between the collecting container and the cover and an open position wherein the inlet adjustment ring at least substantially leaves the continuous passage slot between the collecting container and the cover open.