Double Check Valve Testing in Bixby, OK

Quick facts	Answer
Cost range	About $75-$200 per device; small assemblies may be $50-$75
Time	About 10 to 30 minutes per assembly
Who's qualified	Oklahoma has no statewide tester license; local water purveyors approve testers, often requiring plumbing licensure plus backflow certification

Bixby, OK: what's different here

Bixby sits in Tulsa County, about 18 miles and roughly 29 minutes by car from Tulsa via the main highway. The area has a humid subtropical climate with hot summers and seasonal severe weather that can affect water-use systems. Clay-rich soils in Tulsa County shrink and swell with moisture changes, which matters for buried utility access around backflow assemblies. Homes with irrigation systems should plan annual testing around the local freeze season.

Who can test a double check valve assembly in Bixby?

Oklahoma does not have a statewide backflow tester license. Local water purveyors approve testers, and many require plumbing licensure plus backflow certification. Ask the pro for proof of license and insurance before booking.

What standard does double check valve testing follow?

Testing procedures for double check assemblies in Oklahoma must follow recognized standards such as ASSE 5015 or CSA B64.10/B64.10.1. Confirm the tester uses one of these procedures. The test requires a brief water shutoff.

How often should Bixby irrigation backflow preventers be tested?

City of Tulsa guidance says a lawn irrigation system backflow preventer should be tested annually by a qualified professional. Plan around the local freeze calendar: the mean first 28°F hard freeze is November 14 and the mean last is March 17. Winterization timing matters for outdoor assemblies.

Why does Bixby soil matter for backflow testing access?

Tulsa County has clay-rich soils that shrink and swell with moisture changes. That movement can affect buried utility access around backflow assemblies. Seasonal severe weather and hot summers can also affect water-use systems.

What to do next

Request a quote for a double check valve assembly test and confirm the price falls in the $75-$200 annual range (or $50-$75 for a 3/4- or 1-inch device).
Ask the tester to verify they follow ASSE 5015 or CSA B64.10/B64.10.1 procedures.
Ask for proof of plumbing licensure plus backflow certification, since Oklahoma has no statewide tester license and local water purveyors approve testers.
Schedule the test before the mean first 28°F hard freeze around November 14, and ask whether a brief water shutoff is needed.
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.

Quick answers

How long does a double check valve test take?

Testing usually takes about 10 to 30 minutes per backflow assembly. One guide says 10 to 20 minutes and notes a brief water shutoff is required.

Does Bixby require a specific tester approval?

Oklahoma has no statewide backflow tester license. Local water purveyors approve testers, and many require plumbing licensure plus backflow certification.

What pressure must a double check detector assembly handle?

City of Tulsa water-meter specifications say a double check detector assembly design working pressure must be a minimum of 150 psi. The assembly must also be tested by a City of Tulsa-approved Back Flow Assembly Tester before acceptance.

Is annual testing really required for irrigation systems?

City of Tulsa guidance says a lawn irrigation system backflow preventer should be tested annually by a qualified professional. That guidance is repeated in a second City of Tulsa publication.