According to Wasauna Bath of Scottsdale, Arizona a standard bathroom faucet uses 2.5 gallons of water per minute. The American Dental Association claims that the average time spent brushing teeth is 46 seconds per day. To make it simpler to run the figures, I will use 45 seconds which is 3/4 of a minute. Using these figures, the average person, who keeps the water running while brushing their teeth, will use 1.875 gallons of water.
An individual would let 684 gallons run down the drain in a year's time of brushing their teeth.
Let's make this a bigger number. If only one person in every hundred in the United States keeps the water running while brushing their teeth, 2,079,768,512 gallons of water will go down the drain wastefully. Those estimates are probably low too. I bet more than 1 in a 100 people keep the water running plus when you add in the rest of the world the number becomes staggering.
Even if you are not a believer in the green movement, you have to see that this is a wasteful practice. Those trillions of gallons could be better used than going down the drain.
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