They also equalize the supply or pressure in the distribution system. A common example of a storage reservoir is an aboveground water storage tank. Booster stations are used to increase water pressure from storage tanks for low-pressure mains. Valves control the flow of water in the distribution system by isolating areas for repair or by regulating system flow or pressure. Hydrants are designed to allow water from the distribution system to be used for fire-fighting purposes.
Meters record the flow of water in a part of the distribution system.
Service connections are used to connect individual buildings or other plumbing systems to the distribution system mains. A cross-connection is any connection between a potable and nonpotable water system through which a contaminating flow can occur. Backflow preventers, such as air gaps and vacuum breakers, are used to prevent flow through potential cross-connections. Integrated Publishing's Official Web Page Click here for a current index of everything on this web site. All Rights Reserved.