With purified water, the source isn’t always a priority. The focus is placed on the purification process that the water goes through, which removes any contaminants or chemicals in order to ‘clean up’ the flavour.
Mineral water however, such as Mountain Falls, gains its taste from the mineral enrichment that the source provides. The unique flavour of mineral water is also a result of the source, making the taste of each mineral water different.
Mineral water also has to be bottled on site, and at the source, whereas the process of purified water cannot always be traced.
You are what you drink. So choose to drink perfection.