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This is a multi-functional household water storage bucket, specially designed for arid and dry regions in Africa, with functions of heating, purifying and collecting water. Through the concave-convex mirror , the bucket use solar energy to heat water, as a consequence,the people can have a hot bath which Increases immunity at some degree. And the waterproof canvas can collect rainwater on rainy days and collect condensate water at night. On top of that,there is a water purification device under the bucket to prevent Africans from drinking dirty water. People can change the upper device of the bucket according to their requirements.