The gravity-powered act of transferring beer or wine from one container to another, or the equipment used to do so. Winemakers and some brewers commonly refer to syphoning as "racking."
a tube running from the liquid in a vessel to a lower level outside the vessel so that atmospheric pressure forces the liquid through the tube
A tube/pipe placed with one end at a certain level in a body of water and the other in a body of water below this level.