The gray water movement encourages conserving and reusing household water. 'Gray water' is described as the runoff from the water appliances in the home, such as the tubs, showers, sinks and washing machines. The used water from those appliances can be used to provide moisture for outdoor plants, rosebushes and orchards (if you're baller enough to afford one).
Laura Allen, who co-founded the Graywater Action, claims that this movement has made progress as many institutions and municipalities around the world have made use of gray water. Her actions will be integral in driving more change, yet there is still long way to go.
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Graphic Water Vessels