New technologies in public water fountains let people refill bottles with clean, commercially filtered H20. The touchless fountains are also healthier, since they are hands-free. Whether you’re traveling or just on the go, the free app WeTap (available for iPhones) helps you find public water fountains wherever you are. Enter where you are, and the app will point out refill stations near you. You can update the app, too, to help others find hydration stations in parks, stadiums, schools and more.