Source of PotassiumPotassium (K+) is an alkaline metal closely related to sodium. It is seldom that one sees it analyzed separately on a water analysis. Potassium is not a major component in public or industrial water supplies. Potassium is, however, essential in a well balanced diet and can be found in fruits such as bananas.
Treatment of PotassiumA cation exchange resin, usually in the form of a softener, can remove Potassium. It can also be reduced by 94 - 97% utilizing electrodialysis or reverse osmosis.