Abstract :
Most of the water we drink comes from aquifers, layers of rock and sand at the bottom of our lakes. To get to it, we dig wells. Pumps draw the water from the aquifers and bring it to a treatment plant, where, in the simplest terms, the water is aerated to improve its quality and mixed with chlorine to make it cleaner. A series of pipes then carry the safe water into the plumbing systems of our homes and buildings.
