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The rainwater harvesting systems is a technique which that have been used for many years, with outstanding results that has been used since antiquity. However, it is still not used around the world. Drinking water is an essential element for humanity. However, millions of people do not have access to drinkable water all over the world. Poor countries do not benefit from drinking water even if efforts have been made by governments in developed countries. Poor countries cannot afford modern water treatment and water...