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This product in the ordinary course of additional filtering layer under the bottom, when you use the water for daily cleaning, don't have to worry about the bright water not enough use.Dirty water can pass filter layer and then filter out of brigh water, after that just enjoy the brigh water. Each family only need two filter basin, can continue to use bright water,and far away from diseases brought by the dirty water.At the same time,it can save water and you can use safe and bright water.
GuangDong Ocean University