Back siphonage definition

Back siphonage means the backflow resulting from pressures lower than atmospheric pressure in the water installation;

Back siphonage means the backflow of water resulting from negative pressures in a water installation or in the water supply system;

Back siphonage means the creation of a backflow as a result of negative pressure.

Examples of Back siphonage in a sentence

• Back siphonage is the condition where negative pressure in a potable water pipe induces backflow through a cross connection.

• Back siphonage means the flow of water or other liquids, mixtures or substances into the distributing pipes of a potable water supply system from any source, other than its intended source, caused by a sudden reduction or pressure in the potable water supply system.

• Back siphonage is a reversal of normal flow in a system caused by a negative pressure (vacuum or partial vacuum) in the supply piping.

• Back siphonage can be created when there is an interruption in the water supply (e.g., nearby firefighting activities, repairs or breaks in the City water main).

• Back siphonage and back pressure are two types of backflow specifically contemplated by these Rules and Regulations.

More Definitions of Back siphonage

Back siphonage means the flow of water or other liquids, mixtures, or substances into the distribution pipes of a potable water supply system from any source(s) other than the intended source caused by the reduction of pressure in the potable water supply system.

Back siphonage means the flowing back of used, contaminated, or polluted water from a plumbing fixture or vessel into a water supply pipe due to a negative pressure in such pipe. (See “backflow”)

Back siphonage means the flowing back of used, contaminated, or polluted water from a plumbing fixture or vessel or other sources into a potable water supply pipe due to a negative pressure in a pipe.

Back siphonage means the flowing back of used, contaminated or polluted water from a plumbing fixture, vessel or other source into potable water supply pipes because of negative pressure in the water supply pipes.

Back siphonage means backflow caused by pressure below atmospheric in the supply system;

Back siphonage means siphonage of water or other liquids from external sources into the water supply during times of pressure differential, whether due to improper connections or failure of devices in the system.

Back siphonage means backflow caused by negative or sub- atmospheric pressure in a portion of a public water system.