| Quick facts | Answer |
|---|---|
| Cost range | About $50–$250 per device |
| Time | About 15–30 minutes per device |
| Who's qualified | ABPA or ASSE certification plus a Construction Industries Board plumbing license |
Owasso, OK: what's different here
Owasso is a fast-growing suburban city in Tulsa County with a 2020 census population of 38,144, so its housing stock is newer than older central-city areas. It sits about 14 miles from Tulsa, roughly a 19-minute drive north via US-169. The area's humid subtropical climate brings about 60.2 inches of precipitation per year, which supports heavy irrigation use and makes annual backflow protection on outdoor water lines important.
Is annual backflow certification required in Owasso?
Oklahoma's plumbing code, based on the 2018 International Plumbing Code with Oklahoma amendments, requires testing at installation, after any repair or relocation, and at least once every year. Testable assemblies include RPZ and double-check devices. Irrigation systems on outdoor water lines are a common trigger in Owasso.
How long does a backflow test take?
Most tests take about 15–30 minutes per device. More complex commercial assemblies can take longer. Fire-line and RPZ assemblies generally cost more than a standard irrigation double-check test.
Who can certify a backflow device in Owasso?
Oklahoma has no statewide backflow tester license; each city or water district approves its own testers. Many jurisdictions require ABPA or ASSE backflow certification. Testers also need the Construction Industries Board plumbing license that covers the work.
How does Owasso weather affect backflow devices?
The Tulsa area averages about 15.4 inches of snowfall per year, so freeze events are occasional but real for exposed assemblies. The mean first hard freeze is November 14 and the mean last hard freeze is March 17. Ask the pro about freeze protection for outdoor devices.
What to do next
- Confirm which device you have - a standard irrigation double-check test usually lands at the low end of the $50–$250 range.
- Ask the tester for proof of ABPA or ASSE certification and their Construction Industries Board plumbing license.
- Request a written quote that lists the per-device price and whether repairs or retesting after a failure cost extra.
- Schedule the test before the mean first hard freeze around November 14 if your assembly is exposed outdoors.
- 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.




