Backflow may occur when there is a loss of system pressure or the customer's water pressure increases above that of CAW's distribution system. BACKSIPHONAGE occurs when low or negative pressure on the supply side of the system causes the reversal of the normal flow of water. It may be caused on the supply side of the system when there is a break on a water main, increased water usage during fire fighting, or when a motorist hits a fire hydrant and causes damage.

Normally water flows from the distribution system through the customer's meter and into the facility. Backflow is the reverse of flow of water from its normal direction back into the distribution system. This occurs when a cross-connection exists. See similar questions...

ANSWER: Backflow is the undesirable reversal of flow of nonpotable water or other substances through a cross-connection and into the piping of a public water system or consumer's potable water system. There are two types of backflow... backpressure backflow and backsiphonage. (TOP) See similar questions...

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ANSWER: Backpressure backflow is backflow caused by a downstream pressure that is greater than the upstream or supply pressure in a public water system or consumer's potable water system. Backpressure (i.e., downstream pressure that is greater than the potable water supply pressure) can result from an increase in downstream pressure, a reduction in the potable water supply pressure, or a combination of both. See similar questions...

ANSWER: A backflow preventer is a means or mechanism to prevent backflow. The basic means of preventing backflow is an air gap, which either eliminates a cross-connection or provides a barrier to backflow. The basic mechanism for preventing backflow is a mechanical backflow preventer, which provides a physical barrier to backflow. See similar questions...

The supply line to the pressurized boiler at the fertilizer plant was leaking, which allowed chemicals in the boiler to backflow into the water main supplying the fast food restaurant next door. A backflow prevention assembly would have prevented this type of contamination from occurring. See similar questions...

To protect the public water system, the City of Odessa requires a backflow prevention assembly (BFPA) to be installed in certain water use applications. The type of BFPA which must be installed is dependent on the type of hazard the BFPA is protecting the system against. See similar questions...

A backflow assembly is an approved, testable assembly which uses valves in different configurations to prevent polluted or contaminated water from reversing direction and flowing backward. Common uses are on fire sprinkler systems, irrigation systems, boiler make-up and domestic water services. See similar questions...

Back pressure backflow is backflow caused by a downstream pressure that is greater than the upstream or supply pressure in a public water system or consumer's potable water system. Back pressure (i.e., downstream pressure that is greater than the potable water supply pressure) can result from an increase in downstream pressure, a reduction in the potable water supply pressure, or a combination of both. See similar questions...