Backflow prevention assemblies can reduce or eliminate backflows by segregating drinking and non-potable water piping. This is done either by providing an air gap or by installing a backflow prevention assembly (BPA) between the two plumbing systems.
Backflow Prevention Assembly Types |
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Air Gap |
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Reduced-Pressure Backflow Assembly (RBPA) |
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Pressure Vacuum Breaker (PVB) |
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Double Check Valve Assembly (DCVA) |
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Installation
It is important that the backflow prevention assembly match the location’s particular hydraulic conditions and is suitable to protect against the degree of hazard present. Any BPA installed must be a design approved and listed by University of Southern California Foundation for Cross Connection Control and Hydraulic Research. Also, the BPA must be installed according to the most recent plumbing code adopted by the City of Harker Heights.
Testing and Maintenance
Once installed, these BPAs are subject to initial and periodic testing and maintenance requirements to confirm their continued operational effectiveness. Such testing must be performed by a state licensed Backflow Prevention Assemble Tester registered with the City of Harker Heights.