| Quick facts | Answer |
|---|---|
| Cost range | $50 to $250 per assembly |
| Time | Varies by device/assembly |
| Who's qualified | State-certified backflow prevention tester issued by SC DES |
State Requirements for Reduced Pressure Zone Assembly Test in Charleston
All backflow prevention assembly testing in South Carolina must be performed by a state-certified backflow prevention tester. This certification is defined as holding an up-to-date card issued by the Department. The testing guide states that assemblies must be tested at least once a year, immediately after installation, and after any repair.
Testing Standards and Climate Considerations for Charleston Backflow
South Carolina requires the tester’s differential gauge to be accurate to within 2% of full gauge scale or plus/minus 0.3 psi differential. Charleston County faces coastal flooding and gale-force winds, which can affect plumbing and exterior water systems, making regular testing crucial.
Backflow Prevention Certification Details
A South Carolina backflow prevention assembly tester certification is earned through a four-day course involving written and hands-on testing. Once earned, the certification is valid for three years. Training workshops are listed at various locations throughout the state.
What to do next
- Verify that the local pro performing the reduced pressure zone assembly test holds a current state-certified backflow prevention tester certification.
- Ask the pro for proof of licence and insurance before the reduced pressure zone assembly test is conducted.
- Confirm the testing costs, which are generally priced between $50 and $200 per device.
- Ensure the tester verifies the differential gauge accuracy is within 2% of full gauge scale or plus/minus 0.3 psi.
- 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.
