The Jacuzzi Effect is a phenomenon in which a circular motion of water is created when a jet of water is released into a pool or other body of water. This effect is caused by the EDDY, which is a small whirlpool or current of water that moves in a circular motion. The EDDY is created when the jet of water is released and the water is forced to move in a circular pattern. This effect can be seen in hot tubs, pools, and other bodies of water.