Use this checklist to understand exactly what our certified technicians inspect during a commercial backflow preventer inspection. It's also useful for building staff performing monthly visual checks between professional inspections.
Reduced pressure principle (RP) assemblies — check valve #1, check valve #2, relief valve
Double check (DC) assemblies — both check valves
Pressure vacuum breaker (PVB) assemblies
Test cock operation and gauge calibration
Forward and reverse flow verification
Enclosure and freeze protection (where applicable)
Between professional inspections, trained building staff should perform monthly visual checks to confirm all components are in place, accessible, and show no obvious damage. These checks don't replace certified inspections but help catch problems early.
Document each monthly check with the date and inspector's initials. This documentation may be requested during a fire marshal visit.
Every professional inspection must be documented with the date, inspector name, components tested, test results, and any deficiencies found. Records must be retained and available for review by your Authority Having Jurisdiction (AHJ) and insurance carrier.
Oklahoma City Fire Protection provides complete documentation for every inspection, formatted for the Oklahoma State Fire Marshal and your local AHJ.
Tell us about your property and the services you need. We'll send a same-day quote and get you on the schedule — usually within 24 hours across the Oklahoma City metro.
One inspection. One report. Fully compliant. We handle every fire and life safety system for your commercial property — so you stay compliant without juggling multiple vendors.