What is a "colema?"

Gad, the absorption of chlorine not to mention the byproduct of chlorine reacting with organic matter, trihalomethane, not to mention the petroleum gases from agricultural run-off, or the bugs in some civic water supplies should predispose one to seek some means of filtration, relatively cheap and easy today. This isn't running water through the enzyme and acid bath of the stomach, it is putting it into direct contact with the tissue of the intestinal tract. Please rethink this. Tweet