| Quick facts | Answer |
|---|---|
| Cost range | Usually $50 to $250; double check assemblies often cost less |
| Time | Usually 30 to 60 minutes per device |
| Who's qualified | Most Oklahoma utilities accept ASSE or ABPA tester credentials |
Jenks, OK: what's different here
Jenks is in Tulsa County, about 11 miles and a 15-minute drive from Tulsa via the OK-364 Creek Turnpike. The city averages 64.0°F annually with 43.5 inches of precipitation, and has a moderate flood risk with about 4% of properties expected to face severe flooding over 30 years. That mix of moisture and occasional flooding makes annual double check valve testing worth keeping on schedule.
When is double check valve testing required in Jenks?
Oklahoma backflow rules require testing at installation, immediately after repairs or relocation, and at least annually. The plumbing code framework referenced by local guidance says the same. Mark your renewal date so you never miss the yearly test.
Who can test a double check valve in Jenks?
Oklahoma has no statewide backflow tester certification program; local water purveyors set their own standards. Most Oklahoma utilities accept ASSE or ABPA credentials. Many testers complete a 40-hour ASSE 5110 course with an exam of 100 written questions.
How long does the test take?
Tulsa-area testing commonly takes 30 to 60 minutes per device depending on accessibility. During certification exams, testers must demonstrate a double check valve test within a one-hour window. Easy access to your assembly helps the visit go faster.
Does Tulsa water approval matter for Jenks properties?
Jenks sits about 11 miles from Tulsa, roughly 15 minutes via OK-364. The City of Tulsa's water-meter specifications require testing by a City-approved Back Flow Assembly Tester before acceptance. Ask the pro you hire whether your water provider has a similar approval list.
Does Jenks flooding or weather affect backflow devices?
Jenks has a moderate flood risk, with 343 properties likely to be severely affected over the next 30 years, about 4% of the city. Tulsa's mean first hard freeze is November 14, so winterization timing matters. Ask the pro whether your device needs drain-down before freeze season.
What to do next
- Check your water provider's tester-approval rules; most Oklahoma utilities accept ASSE or ABPA credentials.
- Ask for proof of the tester's certification and insurance before the appointment.
- Request a quote that states the $50-$250 price range for your double check assembly.
- Schedule annually, and after any repair or relocation of the device.
- 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.



