Abstract: Apparatus for increasing the air/water interface of a body of liquid to increase vaporization that consists of a suction pick-up feeding liquid to a supply conduit which, in turn, is connected to a feeder pipe which distributes water down over an aeration assembly that is disposed proximate the body of liquid. The aeration assembly consists of a plurality of specialized cellular fiber panels arranged in any of a stationary linear array, rotatable radial array or horizontal spaced stack that are optimally wetted with the liquid to maximize contact with surrounding air.