Construction
Backflow Prevention
Protecting potable water from cross-connection contamination using RPZ, double-check (DCVA), and pressure vacuum breaker (PVB) assemblies. Covers where each device is required on irrigation, fire suppression, and commercial systems, along with the annual testing and reporting that most jurisdictions mandate.
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Learning Paths
Choose a path that matches your experience level and work toward mastery at your own pace.
Beginner Friendly
1 path
Start here
Learn what cross-connections are and how RPZ, double-check, and pressure-vacuum-breaker assemblies protect potable water on irrigation, f...
Intermediate
1 path
Understand cross-connection control top to bottom: back-siphonage vs back-pressure, where each device type (AVB, PVB, DCV, RPZ) belongs, ...