地球表面的72%被水覆蓋，但是淡水資源僅占所有水資源的0.75%,約占世界人口總數40%的80個國家和地區約15億人口淡水不足，其中26個國家約3億人極度缺水,隨著人口的增長及人均收入的增加，人們對水資源的消耗量也以億合計數增長。

        中國是一個干旱缺水嚴重的國家。人均淡水資源僅為世界平均水平的1/4、在世界上名列110位，是全球人均水資源最貧乏的國家之一。人均可利用水資源量僅為 900立方米，并且分布極不均衡。20世紀末，全國600多座城市中有400多個城市存在供水不足問題，其中比較嚴重的缺水城市達110個，全國城市缺水 總量為60億立方米, 因此我們要加強保護水資源意識，不要讓最后一滴水成為我們的眼淚！雨水回收利用是目前較重要的解決措施。

        雨水回收廣泛應用于住宅小區、工業廠房、商業建筑的綠化灌溉、沖廁、景觀水池用水、洗車、冷卻塔補水、工業用水。

72% of earth surface is covered by water, but freshwater resource only occupies 0.75% of all water resources. About 1.5 billion population in 80 countries and regions that occupy 40% of the total world’s population has insufficient freshwater, in which, about 300 million population in 26 countries have serious water shortage. Along with the increase of population and the rise of per capita income, the consumption of people for water resources also increases in a hundred million numbers.

China is a country with serious drought and water shortage. The per-capita freshwater resource is only 1/4 of the world average level and ranks the 110 in the world. China is one of the poorest country in global per capita water resources. The per capita available water resource is only 900m3 and is unevenly distributed. At the end of 1990s, there were over 400 cities have insufficient water supply problem among the more than 600 cities in the country, in which, the cities with serious water shortage reached 110. The total urban water shortage in the whole country was 6,000,000,000m3. Therefore, we shall strengthen water resource protection awareness and do not let our tear becomes the last drop of water. Rainwater recycling is a relatively important solving measure now.

Widely used in greening irrigation/toilet flushing/water for landscape pond/ car washing/water replenishing of cooling tower/industrial water consumption of residence communities, industrial plants and commercial buildings.