What are the three major components of a water distribution system?

The three major components of a water distribution system include cold water lines, hot water lines, and water service. These components are essential for delivering water to various locations within a building or facility. Cold water lines are responsible for transporting unheated water directly from the main water supply to outlets throughout the structure, such as sinks, showers, and appliances. Hot water lines, on the other hand, carry water that has been heated, typically by a water heater, to fixtures requiring hot water. The water service component connects the building to the municipal water supply or a private water source, ensuring that water can be accessed as needed.

This combination of cold and hot water lines along with water service is fundamental to the operation of any facility's plumbing system, as it facilitates the necessary flow and availability of water for everyday use. In contrast, the other options focus on different aspects of plumbing and waste management rather than the distribution of water itself.