RainStick captures, circulates and cleanses hot water in real time to avoid waste. Each drop is used 6 times before being sent down the drain. Each drop passes through a micron screen where larger debris like hair, dirt and sand are removed. It’s then treated with intense UV light to address viruses and bacteria. To deal with soap and shampoo, a tiny amount of grid-supplied hot water is continuously added to refresh the loop. Water is never stored. And, at any time, you can select the traditional shower mode to use water only once. It’s time to shower smarter and live a sustainable lifestyle, without compromise.