| Quick facts | Answer |
|---|---|
| Cost range | $50 to $150 per assembly annually |
| Time | Annual test of each assembly after installation |
| Who's qualified | State-certified backflow prevention tester with up-to-date certification card |
Johns Island, SC: what's different here
Johns Island is in Charleston County, about 12 miles and roughly 19 minutes by car from Charleston via the main highway. The island has a humid-subtropical climate with long, hot, humid summers and mild winters. Many homes built in the 1970s and 1980s near the Stono River or Intracoastal Waterway feature crawl spaces. The area is vulnerable to tropical storms and heavy rainfall that raises flood risk.
How often does a commercial kitchen need backflow testing?
Every backflow prevention assembly must be tested after installation and before use. After that, commercial kitchens need an annual test of every assembly. Missing a yearly test can put your water service at risk.
Who can perform backflow testing in Johns Island, SC?
South Carolina requires all backflow testing to be done by a state-certified backflow prevention tester. A certified tester holds an up-to-date certification card issued by the Department. Ask the pro for proof of certification and insurance.
How does Johns Island's flood risk affect backflow testing?
Johns Island is vulnerable to tropical storms, and a single rainfall event can bring 10 to 20 inches or more. Flooding raises cross-connection risks, so keep every backflow assembly tested and in working order. Charleston County gets about 49 inches of rain per year.
How do testers get certified in South Carolina?
Tester certification requires four days of training plus written and hands-on exams. The certification lasts three years and must be renewed to stay valid. Training classes have been listed locally, including a Charleston-area class at the North Charleston Convention Center.
What to do next
- Schedule the annual test for every backflow assembly in your commercial kitchen.
- Verify the tester's up-to-date certification card issued by the South Carolina Department.
- Ask for proof of licence and insurance before the test.
- Get a written quote of $50 to $150 per assembly in the Charleston-area market.
- 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.
