Rainwater Harvesting for Water Conservation in Sanur’s Tourism Harbour Building: A SWMM Simulation

This study focuses on the implementation of rainwater harvesting as a water conservation alternative in Sanur International Tourism Harbour Building. The research was conducted to evaluate effectiveness this technique reducing building’s dependence freshwater resources and determine its potential sustainable management solution. rooftop considered, SWMM (Storm Water Management Model) simulation used model hydrological processes, including rainfall, runoff, infiltration area. calibrated using observed rainfall data collected from vicinity. results showed that system effective can collect an estimated 41.58 m3 rainwater. amount is deemed sufficient support overall reduce consumption contribute demonstrated method for buildings Sanur, Bali. such not only but also practices region.