The Aquascape Waterfall Spillway makes it easy to create a waterfall or stream, providing smooth, consistent, leak-free water flow. As the incoming water rushes in, the water is diffused by strategically positioned internal barriers to create a smooth flow of water. Its durable design allows boulders, gravel, soil, or other creative landscape material to be set directly on top, making it easy to camouflage into the surrounding landscape.