Michael Phelps shows us how much water we're wasting when we brush our teeth

U.S. Olympic swimmer Michael Phelps has collaborated with Colgate to ensure that everyone is learning how to save water. Phelps explains that up to 4 gallons of water is wasted each time we brush with the faucet on.  Read more...

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from Mashable https://mashable.com/video/michael-phelps-wasting-water-colgate/
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