Every drop counts..9-year-old Indian-American Oyon Ganguli invents water saving device. He came up with a shower water recycling prototype called ‘The Cleaner’ that filters water to be re-used in the shower which drains away during a shower. He used three layers of cleaning material–gravel, sand and charcoal. The machine takes in used shower water from the drain and pumps it back to the source after filtering. His Water-recycling Device Wins Mighty Minds Contest for Youth Inventors in USA. Join with me to congratulate Ganguli and wish him Good Luck.!!