There is something I found with our drinking water that makes an interesting lesson about alkalinity and pH. I tested our water and to my dismay it was slightly acid but putting only a pinch of sodium bicarbonate into a half gallon moved it powerfully to the alkaline. There is some confusion between alkalinity and pH. It seems that it is not enough to drink high pH water. Alkalinity also needs to be high for the high pH water to have a strong medical affect.