Finally a solution for purifying dirty water for drinking. No fancy filters, no complex machinery, only using the nature and its law. We all knew this law. We all knew about cycle of water. The sun, which drives the water cycle, heats water in oceans and seas. Water evaporates and goes in to the atmosphere then comes back to earth as rain. Well this is what designers learned from. When the Mother Nature gives us clean water like this why we don’t use the same technique. Just think how it can be useful for people who have no access to clean drinking water.