The water is the life fountainhead, as the saying goes, the “person may not eat meal by first, but cannot on first not drink water the “humanity's life to the boiling water, the water is not the humanity lives the essential important resources.

According to the material demonstrated that, on the Earth can by the human direct use fresh water resources, only occupy the Earth 0.3%. On the Earth the overwhelming majority area all seriously lacks the water, many trees. The village and the paddies other desert swallows, the desert area is expanding gradually. The fresh water resources reduction, has affected humanity's economic development seriously, also is threatening humanity's survival. Saves the water used, protected the water resources already to cause the universe to take highly.Constructs a water source to be rich. The clear waters beautiful homeland is our desire.

However, in ours life, the waste water resources phenomenon is quite serious.. The material investigates which from us indicated that, in our real life, in ours periphery, the waste water resources situation is extremely astonishing. . Says first our school, we have paid attention, the classroom building the water hydrant sometimes the water cock has gone bad, Shui Huahua subcrust current does not stop.Some water cocks are frequently drop of drop of water toward the outside drop, these did not know has wasted how much water situation, on the very many family surface looked saves the water used very much, in fact is in the waste water resources.Some family kitchen and the bathroom water cock water day in day out all drops in one drop of one drop toward inside the water jar and the Chu bucket, however the water jar and the Chu bucket water in does not stop actually toward the outside flows in the sewer.