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As we all know water is limited, but human unscrupulous waste of water resource. Led to the serious situation. According to the international water institute estimates that 780 million people globally do not have access to clean drinking water, in which there are 3.4 million people die each year from water-related all kinds of diseases. This situation is a serious threat to human survival. We design this kind of foot barrel. This kind of barrel has inner layer and the shape like hump.By this way this barrel can save more water than ordinary barrel.