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hi there carodebali! This does depend on the area you live in but generally the chemicals used to clean tap water kill off bacteria. When you drink the water the chemicals kill off the friendly bacteria as well as harmful. This lowers all bacteria in your stomach which is bad for digestion. There are also other contaminants like fluoride which also are bad for gut bacteria. Did that answer your question :)?

yes thanks for that, I didn't know about that