Rain Water Harvesting as a method of utilizing rain water for domestic and agricultural use is already widely used throughout the world. It is a method which has been used since ancient times and is increasingly being accepted as a practical method of providing potable water in development projects throughout the world. It has wide application also in urban and peri-urban areas where the reliability and quality of piped water is increasingly being questioned. Despite these facts the percentage of households using rain water harvesting in Zimbabwe both in urban and rural areas is remarkably low.Rain Water Harvesting as a method of utilizing rain water for domestic and agricultural use is already widely used throughout the world.In Hassan CMC adopted that method in a betterway