What does backflow testing include?
Every inspection follows the NFPA standard for the system and the requirements of your local fire department. Here is what we check:
- Annual test of the backflow assembly on your fire line
- Forward flow test at the required system demand
- Check valves, relief valve and shutoff valves inspected
- Repair or rebuild of failed assemblies
- Test results submitted to your city or water provider
- Reminders before next year's test is due
How often is it required?
These are the typical intervals under current NFPA standards. Your fire department (the authority having jurisdiction) has the final say, and we keep track of what applies to your building.
| What | How often |
|---|---|
| Backflow assembly test | Annually, or as your water provider requires |
| Forward flow test | Annually |
| Results filed with water provider | After every test |
What happens if something fails?
A failed backflow test usually means worn check valves, seals or a relief valve problem. We explain the cause, quote the repair or rebuild, and retest so you can submit passing results before your deadline.
Why does the city care about my fire line?
Water sitting in sprinkler piping is not drinking water. The backflow preventer keeps it from flowing back into the public supply. That is why cities track these tests closely and send notices when they are late.
Why choose AZ Firetech?
- Inspections scheduled in days, not weeks
- Reports with photos and solutions within 24 hours
- Same day or next day service for urgent problems
- Clear pricing before any repair
- Fire department reporting handled for you
- Licensed in Arizona: AZ ROC 364984 C-11 and AZ ROC 365319 C-16
Managing several systems? See how they fit together on our property manager dashboard, or read how often fire systems need inspecting in Arizona.
Frequently asked questions
How often does a fire line backflow preventer need to be tested in Arizona?
At least once a year in most Valley cities, and whenever the assembly is installed, repaired or moved. Your water provider sets the exact schedule and sends notices.
What happens if I miss my backflow test deadline?
Water providers can issue violations and, in some cases, threaten service. Call us as soon as you get a notice and we will get the test scheduled.
Is backflow testing part of my sprinkler inspection?
It can be combined. We often test the backflow during the annual sprinkler inspection so you only schedule one visit.
Do you repair backflow assemblies?
Yes. We repair and rebuild assemblies and retest them so you can submit passing results.
Do you test domestic or irrigation backflows?
Our focus is fire line backflow preventers. Ask us about other assemblies on your property and we will tell you if we can help.
Last updated October 2026