In modern water supply networks, many losses occur before the measuring point - in service connections and distribution pipes - and often remain undetected until visible damage occurs. Acoustic leak detection using smart water meters such as the flowIQ® 2200 enables such leaks to be identified much earlier, as measurement and analysis functions continuously record and evaluate acoustic signals both upstream and downstream of the meter. A 24/7 sensor network and AI-supported algorithms identify typical noise patterns and locate potential leaks without the need to install additional hardware. This results in faster response times, optimized maintenance processes, and a significant reduction in water losses. Practical examples show how utility companies can better prioritize risks and improve their network transparency with this integrated solution.