What Is a Backflow Preventer and Why Is Testing Important?
Your plumbing system is designed to deliver clean water in one direction. Under certain conditions, however, water can reverse direction and potentially draw contaminants into the potable water supply. This reversal is known as backflow.
What Causes Backflow?
Backflow may occur because of a pressure change in the public or private water system. Two primary conditions are commonly discussed:
Backpressure occurs when pressure inside a connected system becomes greater than the pressure in the water supply.
Backsiphonage occurs when water-supply pressure drops and creates a siphoning effect.
Potential sources of contamination can include irrigation systems, commercial equipment, boilers, chemical dispensers, pools, and other cross-connections.
What Does a Backflow Preventer Do?
A backflow-prevention assembly is designed to stop water from reversing direction into the potable supply. Different applications require different types of assemblies.
The correct device depends on the plumbing configuration, degree of hazard, and local requirements.
Why Is Testing Necessary?
Mechanical components can wear, become obstructed, or fail over time. Testing evaluates whether the assembly is operating within the required performance standards.
Certain properties and systems may be required by a utility provider or local authority to have an approved device tested periodically by a qualified tester.
Do Not Wait Until the Deadline
Property owners should keep records of inspections, repairs, and submitted test documentation. Scheduling early provides time to address a failed component before the reporting deadline.
Avellino Plumbing provides backflow-preventer testing and related plumbing services. Contact our office to discuss your device, property, and applicable testing requirements.
