“I consider myself a fairly water-conscious person,” says the average American, sipping on a venti iced coffee while dipping his toes in an Olympic-sized pool, spritzing himself with Evian. “I probably just use a few gallons a day,” he continues, stepping out of a 45-minute shower. “By the way -- have I told you about my toilet that flushes automatically every 20 minutes, just to make sure it’s consistently pristine?”
Just kidding -- it’s not quite that bad. But, according to a recent study in the journal Proceedings of the National Academy of Sciences, the average American consumes twice as much water as she thinks she does. Furthermore, we Americans are not quite sure which practices are the most water-intensive. As it turns out, the Olympic-sized pool isn’t the biggest concern -- 70 percent of personal water use occurs within the home, according to a 2005 EPA study. And the biggest culprit under the roof? Toilet-flushing, accounting for 27 percent of all indoor water use.