WaterCAD is a specialized software tool used for water distribution network modeling and analysis. It allows engineers and designers to simulate various scenarios of water flow, pressure, and quality within the pipeline network, and optimize system performance in terms of efficiency, reliability, and safety. WaterCAD can help solve problems related to water supply, distribution, leakage, water quality, and infrastructure planning and management. It requires specialized knowledge and skills in hydraulic engineering, water treatment, and computer modeling.