‘Greywater’ Could Help Solve Colorado’s Water Problems. Why Aren’t We All Using It?

Your shower, sink and laundry machine account for more than half of indoor water use. Since the wastewater that circles the drain doesn’t come from the toilet, it’s safe to reuse on things like your garden.Those hip to reuse call it greywater. To state and local governments, it’s graywater. However you spell it, it’s an idea that everyone agrees will save water — but not everyone agrees on how it should be done.

Colorado was the last Western state to legalize greywater usage in 2013. Officials say that by 2050, our water supply could fall short for over one million people. Climate change makes the future of Colorado water even more uncertain.