Rainwater harvesting is the process of collecting, storing, and using rainwater for various purposes, such as irrigation, landscaping, drinking, and even household use. It is a sustainable practice that helps reduce reliance on municipal water systems, conserve freshwater resources, and lower water bills. Rainwater harvesting is especially important in areas facing water scarcity, droughts, or regions where water is expensive or unavailable. The method can range from simple, small-scale systems to large, complex setups designed for urban and agricultural uses.