Backflow preventers should be tested annually by a certified backflow assembly tester. This is a Washington and Idaho state requirement on virtually every commercial system and on most residential irrigation systems. Test results must be submitted to your water purveyor by a specific deadline each year.
Why annual testing matters
- Required by state and local water authorities
- Confirms checks and relief valves are working
- Catches freeze damage early
- Avoids fines and water service disruption
- Documents compliance for insurance and resale
We’re certified to test, repair, and replace assemblies and we file results with your water purveyor. Book a test through our backflow prevention service or PVB service for irrigation-specific assemblies.
