Backflow Prevention Assembly Field Logger
Cross-connection program field log — assembly condition, installation issues, test-due tracking and hazard class, GPS-tagged and offline.
New backflow assembly inspection
Most jurisdictions require certified testing of testable assemblies annually; this field log tracks condition and program status between tests.
Field guide: Backflow Prevention Assembly Field Logger
Every documented backflow poisoning event reads the same way afterwards: the assembly existed, and something about it was wrong — an RPZ installed in a flooded pit, a relief port piped solid because it dripped, a fire line with the test cocks snapped off. Cross-connection control is a paperwork-heavy program, and this field log is the part the paperwork can't see: what the assembly actually looks like on the ground, GPS-pinned, with its hazard class and test status.
A discharging RPZ relief valve is the assembly doing its job — telling you a check has fouled — and 'someone plugged the relief port' is the single most dangerous field finding in the program, converting a protective device into a sealed pipe. Test-due tracking by date keeps the annual certified-test cycle honest between office database syncs.
Field tips
- An RPZ in a pit below grade is a finding even when shiny — submersion defeats the relief-port air gap entirely.
- Photograph the tag and serial; assemblies get swapped during repairs and the database quietly diverges from the wall.
- Dripping relief valves are diagnostic gold: intermittent = pressure fluctuation, constant = fouled first check. Log which.
Records are stored only in this browser (localStorage) — export regularly. This tool aids field documentation; it does not replace your agency's official inspection procedures or engineering judgment.
Backflow Prevention Assembly Field Logger — Cross-connection program field log — assembly condition, installation issues, test-due tracking and hazard class, GPS-tagged and offline. Free, offline-first and GPS-aware: open it on any phone, log in seconds, and hand your GIS team clean GeoJSON.
About Backflow Prevention Assembly Field Logger
Every documented backflow poisoning event reads the same way afterwards: the assembly existed, and something about it was wrong — an RPZ installed in a flooded pit, a relief port piped solid because it dripped, a fire line with the test cocks snapped off. Cross-connection control is a paperwork-heavy program, and this field log is the part the paperwork can't see: what the assembly actually looks like on the ground, GPS-pinned, with its hazard class and test status.
How to use Backflow Prevention Assembly Field Logger
- 1Enter the assembly id / serial and tap 📍 GPS to pin the backflow assembly's exact location (or type coordinates).
- 2Work through the backflow assembly checklist — every field matches what a real inspection program records.
- 3Pick a condition on the Compliant / Test due / Deficiency noted / Failed / unprotected ⚠ scale; actionable findings are tallied automatically.
- 4Add notes and log the inspection — it saves instantly to your device, even with zero signal.
- 5Export the round as CSV for your asset system, GeoJSON for the GIS, or print a clean report.
Why use Backflow Prevention Assembly Field Logger?
- ✓100% free, no sign-up — built for crews, not per-seat licences
- ✓Offline-first: records save to your device instantly and survive dead zones
- ✓One-tap GPS tagging with accuracy capture on every record
- ✓Exports CSV for asset systems, GeoJSON for GIS, and print-ready reports
- ✓Checklist and guidance aligned with AWWA M14
Frequently asked questions
What's the difference between an RPZ and a double check?+
A double check (DC) is two spring-loaded check valves — adequate for low (non-health) hazards. An RPZ adds a relief valve between the checks that dumps water out rather than let backflow pass, making it the requirement for high/health hazards. That relief port must discharge freely to air — never plugged, never submerged.
Why do backflow assemblies need annual testing?+
The internal checks are mechanical — springs weaken, debris fouls seats — and failure is invisible from outside: water still flows forward perfectly through a failed check. Only a differential-gauge test by a certified tester proves the protection exists. Most plumbing codes and water purveyors mandate it annually and after any repair.
What is a cross-connection, in plain terms?+
Any actual or potential link between drinking water and anything else — irrigation systems, boilers, chemical feeders, hose bibs in buckets. Backpressure (a pump, a boiler) or backsiphonage (a main break dropping pressure) can pull the contaminant into the potable system. Assemblies are the engineered barrier at each such point.
Can this log replace certified test reports?+
No — certified tests follow jurisdictional forms filed by licensed testers. This log is the program's field layer: inventory verification, installation deficiencies, damage, freeze exposure and due-date tracking. It's what makes the certified-test program land on assemblies that actually exist and are findable.
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