| Quick facts | Answer |
|---|---|
| Cost range | Varies; recertification fee max $50.00 |
| Time | Varies by home; confirm in your quote |
| Who's qualified | Must be a state certified backflow prevention tester |
North Charleston, SC: what's different here
North Charleston is located in Charleston County, South Carolina. The area features a humid subtropical climate, which can increase seasonal irrigation use and backflow-device testing needs. Typical housing stock includes many post-World War II and late-20th-century homes, often utilizing crawl spaces or slab foundations. North Charleston is approximately 6 miles and 10 minutes from Charleston via main highway.
South Carolina Requirements for pressure vacuum breaker testing
South Carolina Code Regs mandate that pressure vacuum breakers must be tested after installation and before use. Testing is required at least once annually unless a specific exception applies. All testing must be performed by a state certified backflow prevention tester.
Technical Standards for North Charleston pressure vacuum breaker testing
A pressure vacuum breaker must be installed a minimum of 12 inches above any downstream piping or use. This device is designed for backsiphonage only and is not approved for backpressure. It works under continuous pressure, allowing for a shut-off valve downstream.
Certification and Recertification Details
To be certified, a backflow prevention assembly tester must complete a four-day course. Certification requires passing both a written and a hands-on practical exam with a score of 70% on the written renewal exam.
Local Training Availability in North Charleston
The South Carolina DES lists a Charleston training class for tester certification at the North Charleston Convention Center. This training is a requirement for those seeking to become state-certified testers.
What to do next
- Verify that the local pro you refer to is a state certified backflow prevention tester.
- Ensure the pressure vacuum breaker is installed a minimum of 12 inches above any downstream piping.
- Confirm in your quote that the tester is certified to perform pressure vacuum breaker testing.
- Ask the pro for proof of licence and insurance before the service begins.
- Call (843) 286-4721 or email [email protected] for a free quote from a licensed, insured local backflow tester.
CHS Backflow is a free referral service: an independent contractor does the work and may pay us a referral fee. You never pay us anything.



