It is a simple technique to conserve water with the use of rain water. through this technique, water is being collected, stored, conveyed, and purified rain water, which runs off from parks, open grounds, roads, rooftops, etc. After water conservation, this water can be used in the future.  Rain water harvesting is one of the advanced and simple methods practiced and followed. This technique can support the conservation of water. Today, there is a lack of good quality water, which has become a significant cause of concern. It is important to know that rain water is pure and of good quality that can be utilized for washing, irrigation, cooking, bathing, cleaning, etc.