| Quick facts | Answer |
|---|---|
| Cost range | $50 to $200 per device; RPZ assemblies cost more than double-check |
| Time | ODEQ-approved CCCS training takes 2 to 3 days |
| Who's qualified | City of Tulsa-approved Backflow Assembly Tester with recognized backflow license |
What does Tulsa law require for annual backflow certification?
The City of Tulsa requires that a backflow assembly be tested by a City of Tulsa-approved Back Flow Assembly Tester before acceptance. Tulsa guidance also says a lawn irrigation system backflow preventer should be tested annually by a qualified professional. That means the official certification must come from a licensed tester, not a homeowner.
What can a handy homeowner do themselves in Tulsa?
You can safely handle seasonal prep: Tulsa's mean first 32-degree frost is November 3 and the mean last is March 29, with a mean of 241 days between hard freezes, so winterize your irrigation backflow preventer before mid-November. You can also visually inspect for leaks, damage, or standing water around the assembly. What you cannot do is perform or sign off the annual certification test yourself.
Why can't I test my own backflow preventer?
Testing requires a gauge kit and training most homeowners don't have. Oklahoma testers complete an ODEQ-approved CCCS course lasting 2 to 3 days, and certification must be renewed every 3 years with 18 hours of continuing education. Tulsa also expects testers to hold a backflow prevention license meeting International Plumbing Code criteria, and tester credentials are tracked and time-limited on the state's licensed tester list.
When to call a pro in Tulsa
Call a pro when your annual backflow certification is due, when your irrigation system's preventer shows leaks or visible damage, or when the City of Tulsa requires a test for meter acceptance. Also call before Tulsa's typical November 14 first hard freeze if your assembly needs winterization work you can't safely do. Any repair or retest after a failed assembly also needs a certified tester.
What to do next
- Call Tulsa Backflow at (918) 202-2068 or email [email protected] to get connected with a licensed, City of Tulsa-approved backflow tester.
- Verify the tester's certification is current by checking the Oklahoma.gov licensed tester list for a valid expiration date.
- Ask the pro for proof of licence and insurance, and confirm their backflow prevention license meets International Plumbing Code criteria.
- Request a written quote stating the per-device price, your assembly type (RPZ or double check), and any local filing fees.
- Call (918) 202-2068 or email [email protected] for a free quote from a licensed, insured local backflow testers.
Tulsa Backflow is a free referral service: an independent contractor does the work and may pay us a referral fee. You never pay us anything.




