Backflow Testing in Carrboro, NC
OWASA requires annual backflow testing for most Carrboro properties — from the 1920s bungalows near Carr Mill to the irrigation systems out in Lake Hogan Farms. We test, and we file the report for you.
Why Carrboro homeowners call us first
RPZ & double-check experts
We test reduced-pressure zone and double-check assemblies on irrigation lines, boilers, and fire systems across Carrboro.
Paperwork handled
Your certified test results go to OWASA promptly — you never chase a form.
Built for older housing stock
Mill houses near Carr Mill and 1990s subdivisions alike get assemblies that match their plumbing and water pressure.
Repair on the spot
If an assembly fails, we can rebuild or replace it and re-test — one visit, one report to OWASA.
If you run irrigation or a commercial line in Carrboro, OWASA expects your backflow assembly tested and certified on schedule — with the results reported to them within ten business days. We do both halves: a certified tester runs your RPZ or double-check assembly through its full certification, and we file the report so you stay compliant without tracking the deadline yourself. It’s the kind of quiet obligation that’s easy to forget until a notice lands in the mail.
What backflow testing actually checks
A backflow preventer is a one-way gate between your private plumbing and the public water OWASA delivers to the rest of Carrboro. When pressure drops — a main break, heavy draw on a hot afternoon, a fire hydrant opening — water can try to flow backward, pulling irrigation runoff, boiler chemicals, or worse into the drinking supply. The annual test puts a calibrated gauge on the assembly and confirms the check valves and relief mechanism still hold. It takes a few minutes per device, and it is the only way to prove the protection is real.
We work on reduced-pressure zone (RPZ) assemblies and double-check assemblies — the two types you will find on Carrboro irrigation, commercial, and fire lines. If yours passes, we file the result and you are set for the year. If it fails, we will walk you through a repair or replacement before we re-test, so you are not left with an open compliance gap.
OWASA backflow rules in Carrboro
Carrboro’s water comes from OWASA — the Orange Water and Sewer Authority — the community-owned utility that serves Carrboro and neighboring Chapel Hill. OWASA sets the cross-connection and backflow rules for the homes and businesses on its system, and those rules are what we test to.
By default, OWASA requires backflow assemblies to be tested annually by a certified tester. There is one common exception: irrigation systems with no chemical feed and no booster pump may qualify for testing every three years instead of every year. If you are not sure which cycle your system falls under, we will confirm it for your property before you owe a thing.
After every test — and after any repair — the certified tester reports the results to OWASA. Reporting windows are set by OWASA and can change, so we confirm the current requirement and handle the filing entirely. You get a copy for your records; OWASA gets the official filing. Nothing for you to mail, upload, or follow up on.
What every Carrboro test visit includes
How it works
Call or book
Reach us at (919) 205‑8248. Tell us your Carrboro address and what assemblies you have — irrigation, fire line, or boiler.
We test on site
A certified tester gauges each assembly and confirms the valves hold. Most homes take well under an hour.
We file with OWASA
Your results go to OWASA promptly. You get a copy; we handle the official submission.
Repair if needed
If an assembly fails, we rebuild or replace it, re-test, and file the updated result — no second compliance scramble.
Due for your annual OWASA backflow test? Let’s knock it out — and file it.
Carrboro backflow testing questions
How often does OWASA require backflow testing?
Do you report the results to OWASA for me?
Which assemblies do you test?
What happens if my backflow assembly fails the test?
My house near Carr Mill is almost a hundred years old. Does that matter?
How long does a test take?
Related services in Carrboro
Proudly serving Carrboro, NC
From Lake Hogan Farms to the bungalows by Carr Mill, we test and file backflow assemblies across Carrboro and the rest of OWASA’s service area.
- (919) 205‑8248
Call or text for fast service - Mon–Fri: 7am–7pm
After-hours help when we can - Serving Carrboro & the Triangle
Local, certified technicians
Schedule your Carrboro backflow test
Certified · paperwork handled · flat-rate pricing.
