| Quick facts | Answer |
|---|---|
| Cost range | Usually $75 to $250 per device |
| Time | Annual testing under typical compliance programs |
| Who's qualified | A state certified backflow prevention tester with a current SC certification card |
North Charleston, SC: what's different here
North Charleston sits in Charleston County, about 6 miles and roughly 10 minutes by car from Charleston via the main highway. The city spans multiple neighborhoods and ZIP codes, including 29405 and 29418. Its civic core is centered around City Hall on LaCross Road. State backflow tester certification classes have been held in the city, so local training activity is well established.
What device protects a fire sprinkler system in North Charleston?
South Carolina requires fire line sprinkler systems to be protected by at minimum an approved double check valve assembly. If antifreeze, foaming agents, or an auxiliary water supply is tied into the system, a reduced pressure backflow prevention assembly is required instead.
Who is certified to test backflow in North Charleston?
South Carolina requires all backflow testing to be done by a state certified backflow prevention tester. Certification comes after a proctored practical exam and a written exam, and the certification card is valid for 3 years. The state recognizes four tester types: General Tester, Limited Tester, Inspector Tester, and Manufacturer's Agent.
How often is a fire sprinkler backflow test needed?
A fire sprinkler system backflow test is usually needed annually under typical backflow compliance programs. The test produces a signed report that goes to the water authority. Ask the pro for proof of a current SC tester certification before scheduling.
How does backflow training work in South Carolina?
The South Carolina tester certification course is a 4-day course. Certification classes have been held in North Charleston, including at the N. Charleston Convention Center area. A certified tester holds an up-to-date certification card issued by the Department.
What to do next
- Confirm which assembly protects your fire line: a double check valve assembly, or a reduced pressure assembly if antifreeze or an auxiliary supply is connected.
- Ask the tester to show a current SC backflow prevention assembly tester certification card, valid for 3 years.
- Request a quote stating the per-device price, since testing usually runs $75 to $250 per device.
- Schedule the annual test and ask for the signed report to file with your water authority.
- 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.



