State-mandated annual backflow prevention assembly testing performed by a CA/NV AWWA Certified tester. Every test includes same-day report filing with your water authority.
Backflow testing is a state-mandated annual inspection of your backflow prevention assembly — the device that stops contaminated water from flowing backward into San Diego's public water supply. California law requires every property with a backflow assembly to have it tested once per year by a certified tester.
At SD Coastal Backflow, every test is performed by a CA/NV AWWA Backflow Prevention Assembly Tester (Cert. No. 20975) using annually calibrated, NIST-traceable test equipment. We test all three major assembly types:
The most common residential assembly, typically installed on irrigation and landscape systems. A PVB test verifies the air inlet valve and check valve are functioning properly to prevent backsiphonage.
Used in moderate-hazard commercial and fire protection applications. DC testing validates both independent check valves are sealing correctly under pressure, including DC Detector assemblies (Type I and Type II).
The highest level of backflow protection, required for high-hazard applications including chemical systems, medical facilities, and commercial food processing. RP testing confirms the relief valve opens at the correct differential pressure, including RP Detector assemblies.
After every test — pass or fail — we file the official test report with your water authority within 24 hours. You receive a PDF copy by email the same day. Authorities we report to include the City of San Diego, Padre Dam Municipal Water District, Otay Water District, Helix Water District, Sweetwater Authority, and all other San Diego County water purveyors.
A failed test means the assembly is not protecting the water supply as required. We diagnose the failure on-site and can perform most repairs immediately — no second appointment needed. If the assembly needs full replacement, we provide a quote and schedule the work. A failing report is still filed with your water authority, and we re-test after repairs to certify the assembly is protecting the supply.
We test all assembly types — PVB, DC, and RP — in standard sizes ¾″ through 3″. Larger sizes and detector assemblies quoted per job. Call or text for a quick quote. Coastal Crew members pay in 11 monthly installments and save 20% on repair labor.