Gotcha. I was taking it as you thinking you needed it in addition to the Berkey filtered water. Be aware that chlorine added to water that has organics in it will create trihalomethane (carcinogen) in the water.
Possiblity of dying of cancer in 20-30 years from now, chance of dying of any number of water borne diseases now? Hmmmm I take the chlorine Alex to live.