Save water!!!!! Did you know that one person can waste as much as 20,000 gallons of water in one month? Allot of people take about a 20 minute shower every night that wastes over 87 gallons of water. And that's just one person! Imagine the hole house! That's will be over 2,000 gallons of water wasted every day.So if we add the hole U.S.A that's over 1,000,000,000,000,000,000,000 gallons of water. And that's for only one month. And that's a bunch of zeros.