In the world of water and sewage, there are three general types of systems.
A water system is for drinking water. Raw water is taken from a collection point (for example, a river, a lake or an underground aquifer) and is transferred using aqueducts, covered tunnels or water pipes to a water purification facility where the raw water is treated. The treated water may be stored for a time in reservoirs, water tanks or water towers. The treated water is transported as needed through pipes to homes, businesses and fire hydrants.
