I just watched a commercial about how many people in the world need drinkable water while showing someone letting water run while brushing their teeth. The commercial asks you to turn your faucet off. My question is how does turning off the faucet here help with water needs in other parts of the world. I totally get the need to restrict water usage in an area that is under drought conditions where people share a common water system. But I live in an area that is blessed with plenty of water right now. This is an honest question. I feel like I may be missing something about how the water from my utility system in Tennessee goes to Africa (or some other place) if I use less. What am I missing?