Did you ever think how much amount of water has been wasted when you are just rubbing your hands with soap under your ordinary tap.The Seesaw water saving faucet now solves your problem by saving the extra water you wasted while washing your hands with it’s simple structure. If one side of seesaw goes up, the other side goes down. When one function operates, the other one will stop instantly, vice versa, just like a simple principle of a seesaw. User can press the left side to let the water flow. The faucet bar’s left side will be automatically tilted and stop the water when user presses the right side to dispense the soap. Press the left side again to make the water runs.
Source : tuvie