Sheer Descent Cascade Waterfalls. Think... water tumbling over a rock-face wall into the pool like the waterfalls found in nature. Or, perhaps you're partial to a cascading rush of water over your mosaic tile. Waterfalls are often fairly dramatic, impressive displays of moving water that are the centerpiece of a pool. These features can even be illuminated for a truly magnificent effect at night. Sheer Descent Cascade Waterfalls give you the option of a serene, glass-like sheet of water falling into your pool, or a rushing waterfall crashing into the still water below. Water flowing from a spout, scuppers allow you to punctuate your pool wall with spilling streams of pool water.