The Clearwater Miracle Pad is the ideal tool for keeping your pool or spa looking pristine. The sponge reacts to water and becomes rough and abrasive to easily clean even stubborn stains on the sides and bottom of pools and spas. Simply add water and you'll be able to wipe away dirt and grime in no time. No need to use potentially harmful chemicals when you don't have to - so no need to drain your spa or pool every time you want to clean it. Save yourself time and leave your pool looking ideal in not time with the Bestway Clearwater Miracle Pad.