Even history will tell us that water is one, if not the most, vital part of human existence. Old tales of cities and civilizations forming around the nearest bodies of water will say a lot about the great role water plays in our daily life. Even our body, for the most part, is composed of water. People can go for a few days on end without food, but never without water. We need water to hydrate, lubricate and nourish our bodies for our bodily functions to operate well. It is also of paramount importance to make sure that we are drinking and using the cleanest and purest water to us to stay healthy, some people would even use a water purifier or a water softener at home, to always be on the safe side.