In order to optimize the water supply system for various operation models, this study uses a hilly water supply project as an example. In order to analyze the water supply network for optimization, this study uses two objective functions: cost and dependability. The designer can then select the best optimization strategy for his needs. The design of a real-world water supply network, a component of a water supply network in a seaside town in China, was done using this methodology. Based on the findings, it is crucial to improve the design of the water supply network under various operating models to get a more reliable design solution at a lower design cost. HIGHLIGHT water distribution network; design; optimization; different operation model.;
