With A.O. Smith Automatic Carbon Filtration Systems, all taste, odor, color, chlorine, chlorine compounds and all organic substances which exist or may exist in your water are filtered. “Activated Carbon Mineral” holds the organic molecules which exist in the water and cause odor, taste and color problems. Chlorine which exists freely in the water and causes undesired odor, is removed by this layer. This device, equipped with fully automatic control systems performs necessary back washing and regeneration processes periodically by itself without the need for human interference according to the program set at the beginning.