Backflow testing & RPZ in Chapel Hill, NC.
Chapel Hill runs on OWASA, and OWASA wants your irrigation backflow tested every single year. We run that annual RPZ test, fix what fails, and file it — so the yearly deadline stops being your problem.
What Chapel Hill homeowners should know
- OWASA tests every year. Unlike Raleigh Water’s three-year residential cycle, OWASA requires an annual backflow test — the single biggest thing to know about compliance in Chapel Hill.
- Let us hold your renewal date. Because it recurs yearly, we can keep your due date on file and reach out ahead of it — so an annual requirement never turns into a missed one.
- Certified, filed, freeze-aware. We’re certified for OWASA, we submit the result for you, and we’ll flag an exposed assembly to protect at winterization so it survives to next year’s test.
The Chapel Hill rule people moving from Raleigh miss
The thing people moving over from the Wake County side almost always get wrong: here the backflow is due annually. Orange Water and Sewer Authority runs a tighter cross-connection cycle than Raleigh Water does, so the three-year residential rhythm you were used to stops applying the moment you cross the county line.
Because it’s yearly, the smart move is to stop treating it as a scramble and put it on autopilot. We test the assembly to OWASA’s standard, rebuild or replace it if it fails, file the certified result, and — if you want — keep your due date on our calendar so next year’s test just happens. One less annual letter to worry about.
The annual test comes up for a lot of reasons
Your yearly OWASA test is due
The reason most people land here — the annual notice arrived. We test, fix if needed, and file before your date.
You just moved from a 3-year utility
Coming from Raleigh Water or Cary and surprised it’s annual now? We get you onto the OWASA cycle and keep you there.
A rental or second property
Chapel Hill has a lot of rentals near campus; landlords need a current test on file each year and we handle them in a batch.
A planned-community assembly
Southern Village and Meadowmont homes on shared or newer assemblies — tested, documented, and filed to OWASA.
The test failed and you’re out of time
A weeping relief valve or a check that won’t seat means a rebuild — we carry kits and retest on the spot when we can.
A freeze-split assembly
An RPZ left charged through a hard freeze cracks; we replace it to code and get you certified again.
Why Chapel Hill testing runs on a schedule Wake County does not
Chapel Hill is the one area we serve that is not on Raleigh Water, and the difference matters more than people expect. OWASA runs an annual backflow testing cycle rather than the three-year residential cycle used across Wake County, which means a Chapel Hill homeowner is due four times as often as a friend in Cary or Wake Forest.
That single fact produces most of the confusion we encounter here. Owners who moved from Raleigh arrive with a three-year assumption already in their heads, and they are not being careless — they are applying a rule that was correct where they used to live. The result is a device that quietly goes two years past due while its owner believes it is fine.
The annual cadence does have a real upside. A device that is exercised and inspected every year rarely accumulates the kind of slow deterioration that turns into an expensive failure, and problems get caught while they are still a rebuild rather than a replacement. Chapel Hill assemblies, in our experience, are in better condition than their age would suggest, precisely because somebody looks at them every twelve months.
The terrain adds one practical note. On Chapel Hill’s sloped lots the assembly is sometimes set well below the highest irrigation head, and a large elevation difference between the device and the top of the system changes the pressure the assembly sees. It is not a compliance problem, but it is worth understanding if a device is failing repeatedly for no obvious reason.
Chapel Hill (OWASA) backflow FAQ
Wait — I have to test every year here?
Yes. OWASA runs an annual backflow cycle, not the three-year residential schedule Raleigh Water uses. It catches a lot of new Chapel Hill residents off guard, which is exactly why we offer to track your date for you.
Can you just remind me each year so I stop missing it?
That’s our recommendation on OWASA — we keep your renewal month on file and reach out ahead of it, so the annual test is handled without you watching the calendar.
I manage a rental near campus — can you do a batch?
Yes — we test multiple Chapel Hill properties in one trip and file each certified result with OWASA, which keeps every unit’s paperwork current.
It failed. How fast can you get me compliant again?
Usually the same visit — we rebuild or replace the RPZ, retest, and file the pass, so a failure doesn’t leave you out of compliance with OWASA.
Do I ever deal with OWASA directly?
No. The certified result goes to OWASA from us and a copy comes back to you. The paperwork is our side of it.
My friend in Cary tests every three years. Why am I annual?
Because Chapel Hill is on OWASA, not Raleigh Water, and OWASA runs an annual cycle. It is the single most common mix-up we see here, and it usually comes from people applying the rule that was correct where they lived before.
Does testing every year mean more expense for no reason?
More often it means less. Annual inspection catches deterioration while it is still a rebuild rather than a replacement, and Chapel Hill assemblies tend to be in better shape than their age suggests because somebody looks at them every twelve months.
Put the yearly test on autopilot
Give us your renewal month
Tell us when OWASA wants it — or forward the notice — and we’ll slot you in ahead of the date.
We test to OWASA standard
A certified gauge test at the assembly, right there in your yard, with a clear pass or fail.
Failures fixed same visit
Rebuild or replace and retest on the spot when we can, so a fail doesn’t become a lapse.
Filed — and we remember next year
We submit to OWASA, hand you a copy, and can flag you when the next annual test comes due.
Get on the OWASA annual cycle
Send your renewal month — we’ll test, fix if needed, file it, and remind you next year.
- Insured and licensed in NC
- Priced up front, nothing added later
- Twelve-month warranty on our labor
Backflow due again already? It’s annual on OWASA.
Call or text your renewal date and we’ll keep you compliant year after year.