Natural water can be gathered and stored through various methods, such as groundwater extraction, soil retention, ponds, reservoirs, wetlands, and dams, primarily sourced from precipitation like rain, snow, and hail. Since the dawn of humanity, the collection and preservation of this vital resource have been essential. Rainwater harvesting plays a significant role in both urban and rural environments, serving as an alternative for cooling cities and fulfilling agricultural needs, including livestock watering, crop irrigation, garden maintenance, and pavement moistening. These practices have historically led to both regional conflicts and collaborations among neighboring countries, evolving into a geopolitical concern over the last two decades. They not only ensure a dependable water supply but also help reduce evaporation and uncontrolled infiltration losses, which is particularly beneficial in arid regions facing water shortages. In rural areas, various strategies are often prioritized, utilizing infrastructure such as ponds, reservoirs, wetlands, and ditches to enhance natural water infiltration and drainage, thereby reducing flood risks. This approach to managing rainwater and runoff promotes a more sustainable and cost-effective utilization of water resources, with stored water in reservoirs being crucial for providing drinking water to rural communities.