Water supply is one of the most essential services in any building, as it ensures the availability of safe and sufficient water for drinking, cooking, cleaning, sanitation, and other daily activities. A well-planned water supply system in a building is necessary to maintain hygiene, health, and comfort for the occupants. The design and installation of such a system must ensure continuous supply, adequate pressure, safety from contamination, and efficient distribution to different parts of the building. The main objective of a water supply system in a building is to provide clean and potable water in adequate quantity and at required pressure to various fixtures such as taps, sinks, wash basins, bathtubs, toilets, and kitchen appliances. The system must also ensure that water reaches all floors of the building without interruption and with minimal wastage. Proper planning of pipelines, storage tanks, pumps, and fittings is therefore essential. Water used in buildings generally comes from a public water supply system or a private source such as a well, borewell, or tube well. In urban areas, most buildings receive water from municipal supply systems, where water is treated at a central treatment plant before distribution. The municipal supply usually enters the building through a service pipe connected to the main distribution line. A water meter