In developing a source, the engineer may use the construction of dams, digging or drilling of wells, and other improvements to increase the quantity and quality of the water. Now that you are familiar with water sources, let us move onto water distribution. The elements of a water distribution system include distribution mains, arterial mains, storage reservoirs, and system accessories. Distribution mains are the pipelines that make up the distribution system. Their function is to carry water from the water source or treatment works to users.
Arterial mains are distribution mains of large size.
They are interconnected with smaller distribution mains to form a complete gridiron system. Typical distribution system layout. Storage reservoirs are structures used to store water. They also equalize the supply or pressure in the distribution system. A common example of a storage reservoir is an aboveground water storage tank.