| Quick facts | Answer |
|---|---|
| Cost range | About $40 to $85 per device locally |
| Time | Annual testing required by South Carolina DES |
| Who's qualified | A state-certified backflow prevention tester with a current DES certification card |
Who can perform sprinkler system backflow certification in Charleston?
South Carolina DES says all backflow testing must be done by a state certified backflow prevention tester. A certified tester holds an up-to-date backflow prevention assembly tester certification card issued by the Department. Ask the pro for proof of that certification before the test.
How often is backflow certification required in Charleston?
South Carolina DES requires annual testing records for backflow prevention assemblies, so certification is typically needed once per year. Charleston Water System also requires annual testing, with reports filed through its third-party reporting process along with applicable filing fees.
Why does Charleston's flooding make backflow testing matter?
One assessment says the probability of the 100-year rainfall event will likely triple by the mid-21st century in Charleston County. Routine summer thunderstorms and high tides also regularly flood parts of the city, which raises cross-connection and backflow concerns for irrigation systems.
What device does my sprinkler system need?
South Carolina DES requires backflow prevention assemblies used in the state to be on the state-approved list of backflow prevention assemblies. Common assemblies tested for certification include the double check valve assembly, pressure vacuum breaker, and reduced pressure principle assembly. Confirm your device is on the approved list.
What to do next
- Check that your sprinkler backflow assembly is on the South Carolina DES state-approved list.
- Ask the pro for proof of a current South Carolina DES backflow tester certification card.
- Get a quote that states the per-device test price and any filing fees for the annual report.
- Schedule the test so your annual report is filed with Charleston Water System on time.
- 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.
