| Quick facts | Answer |
|---|---|
| Cost range | $50-$200 per device in Jenks |
| Time | A short service visit - inspect, differential pressure test, file report |
| Who's qualified | Oklahoma has no statewide tester license; water purveyors approve testers, often requiring ABPA or ASSE certification plus a CIB plumbing license |
Jenks, OK: what's different here
Jenks sits in Tulsa County, about 11 miles and roughly 15 minutes from Tulsa via the Creek Turnpike (OK-364). It is a fast-growing suburb of 28,815 residents that still needs 1,135 more housing units over the next five years. Only 0.3% of new homes in Jenks subdivisions from 2000 to 2024 were townhomes, so the housing stock is overwhelmingly single-family - meaning most homes have their own irrigation system and backflow preventer. Freeze timing mirrors Tulsa, with a mean first 28°F hard freeze around November 14.
How often does Jenks require irrigation backflow testing?
Oklahoma's plumbing code requires backflow prevention assemblies to be tested at installation, after repair or relocation, and at least annually. Most water authorities in Oklahoma also require annual testing and reporting. The rule covers reduced pressure principle, double check, and vacuum breaker assemblies.
When should irrigation backflow testing be scheduled in Jenks?
Tulsa's National Weather Service climatology puts the mean first 28°F hard freeze around November 14 and the mean last one around March 17. Many Jenks homeowners test in spring before irrigation season and winterize before the first hard freeze. The area averages 241 days between hard freezes.
What happens during an irrigation backflow test?
A standard irrigation backflow test is a short service visit, not a multi-day project. The tester inspects the assembly, performs differential pressure tests, and files the report with the water authority. Ask the pro for proof of license and insurance before the visit.
Who is qualified to test backflow devices in Oklahoma?
Oklahoma has no standalone statewide backflow tester license. Local water purveyors approve testers and often require ABPA or ASSE backflow tester certification plus a CIB plumbing license. Check your local water authority's approved tester list.
Why do Jenks irrigation systems need backflow prevention?
Irrigation systems can let non-potable water siphon back into the drinking supply, which is why the plumbing code requires protection assemblies. Jenks is a growing suburb of about 28,815 residents with overwhelmingly single-family housing, so most homes have their own lawn irrigation system to maintain.
What to do next
- Confirm your device type - reduced pressure principle, double check, or vacuum breaker - since the Oklahoma code covers all three.
- Verify the tester's ABPA or ASSE certification, CIB plumbing license, and approval by your local water purveyor before booking.
- Ask for the $50-$200 per-device price in writing, including report filing, before the visit.
- Schedule the annual test in spring, before irrigation season, and plan winterization before the mean first hard freeze around November 14.
- 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.
