Water conservation is increasing critical as a growing world boosts demand for the vital resource. A big step toward solutions would be more ways to reuse so-called greywater that’s already been used to wash laundry or dishes or for similar uses. One promising solution is being worked on by Zachary Bogart, an environmental engineering graduate student researcher in the the School of Sustainable Engineering and the Built Environment, part of the Fulton Schools. Paul Westerhoff, an ASU Regents’ Professor in the school and director of the Global Center for Water Technology, part of the Arizona Water Innovation Initiative, says Bogart’s project is a prime example of the water recycling that would help prevent future shortages.