Each water has a series of characteristics and qualities that distinguish it from the others: just read the bottle label to realize the importance of the individual values and parameters, such as the pH.
Think about it, water is the food that our body needs most and plays an essential role for health. It is therefore no coincidence that during our life we drink a quantity of water equal to about six hundred times our body weight, but we do not always pay the right attention to the quality of the water we drink.
It is known that the waters are not all the same, in particular the minerals; they differ mainly due to the content and type of dissolved salts. The fixed residue is the parameter best known to consumers, but on the label there are a lot of other data that play an important role in biological effects, such as pH.