Check the listing for details. Natural Chemistry Pool Magic Spring and Fall 1 L 13722NCM. Condition: New. Listed at 22.99 USD. Pool Magic contains a concentrated natural enzyme based formula designed specifically to work in cold water. It quickly breaks down non-living organic contaminants, and cleans up cloudy and dirty pool water.Typically, you close your pool in the fall with a dose of Pool Magic. The enzymes control the non-living organics that seep into the water during the off season and minimize the work to re-open or start the pool up. However, if you didn't use Pool Magic in the fall, you will still benefit by adding it during opening. Pool Magic contains SMARTZyme technology. SMARTZyme technology wastes no time breaking down non-living organic materials. A small amount of Natural Chemistry's enzymes can treat large amounts of water due to their ability to bind to non-living organic contaminants and.