| Quick facts | Answer |
|---|---|
| Cost range | $50-$200 per device; DCVAs cost less than RPZs |
| Time | Varies by property - confirm timing in your quote |
| Who's qualified | Must hold a current SCDES backflow prevention assembly tester certification card |
West Ashley, SC: what's different here
West Ashley sits about 10 miles and roughly 17 minutes from downtown Charleston via US Route 17, so local testers cover it easily. Charleston-area tester listings include Charleston and Berkeley County addresses, meaning approved testers serve the West Ashley area locally. The humid subtropical climate - hot, humid summers and mild winters - can increase corrosion and moisture-related wear on plumbing and backflow devices, making regular monitoring worthwhile.
Who can test a double check valve assembly in West Ashley?
South Carolina DES 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 that certification before the test.
How often is double check valve testing required?
Annual testing is required for backflow assemblies, per Charleston Water System's program. Reports must be filed with the applicable fees through the utility's third-party reporting process. Plan for a test every year.
How do testers stay certified for DCVA testing?
South Carolina recertifies testers on a 3-year cycle. The recertification exam includes wet-lab testing of a double check valve assembly, a pressure vacuum breaker, and a reduced pressure principle assembly. Certification itself requires a proctored practical exam and a written exam.
Does Charleston Water System charge for backflow testing?
For Charleston Water System customers, a residential dual-check device is installed and maintained by the utility as metering equipment. There is no additional charge to the customer for that service. Other assemblies still need annual testing by a certified tester.
What should a testing quote include?
Ask whether the price covers the test, the report filing, and any filing fees. Costs run $50-$200 per device depending on the preventer type and installation complexity. Confirm the tester's SCDES certification card is current.
What to do next
- {'text': 'Confirm which assembly you have - a DCVA, PVB, or RPZ - since DCVAs generally cost less to test than RPZs.'}.
- {'text': 'Verify the tester holds a current SCDES backflow prevention assembly tester certification card before booking.'}.
- {'text': 'Ask the pro for proof of licence and insurance, and get the $50-$200 price confirmed in writing.'}.
- {'text': "Schedule the test annually and confirm the report will be filed through Charleston Water System's third-party reporting process with the applicable fees."}.
- 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.
