No-negative-pressure water supply systems are revolutionizing how water is managed in urban and industrial settings. Through case studies in residential complexes, manufacturing plants, urban water networks, and remote areas, it is clear that this technology offers significant benefits in terms of water efficiency, energy savings, and system reliability. As cities continue to grow and industrial demands increase, no-negative-pressure water supply systems will likely play an essential role in ensuring sustainable and stable water delivery to communities and businesses alike.