| Quick facts | Answer |
|---|---|
| Cost range | $29.99 to $100 per assembly |
| Time | Varies by home - confirm in your quote |
| Who's qualified | Must hold a backflow prevention assembly tester certification card issued by the Department. |
Johns Island, SC: what's different here
Johns Island is situated in Charleston County, South Carolina. The area is characterized by organic soils that hold water like a sponge and often has poorly drained underlying horizons. The island is approximately 12 miles and 19 minutes by car from Charleston via the main highway. Charleston County receives about 49 inches of precipitation each year.
Why is the reduced pressure zone assembly test important in Johns Island?
Johns Island is located in Charleston County, South Carolina. The reduced pressure zone assembly test is necessary because South Carolina requires all backflow assembly testing to be performed by a state certified backflow prevention tester. This assembly uses two independently acting check valves separated by a reduced pressure zone.
What is required for the reduced pressure zone assembly test in Johns Island?
Backflow prevention assemblies must be tested at least once annually by a certified tester in South Carolina unless a specific exception applies. A certified tester’s license in South Carolina expires every three years. South Carolina DES requires that all backflow testing be done by a state certified backflow prevention tester.
What does a certified backflow prevention tester need to know?
A reduced pressure principle assembly requires the pressure in the zone to stay at least 2 psi below the supply pressure. South Carolina mandates that field-test equipment must be calibrated or certified annually, specifically requiring a 0-15 psid scale for approved equipment.
How does the certification process work for testers in South Carolina?
South Carolina recertification requires a 25-question written exam and hands-on testing of specific assemblies. The state recertification fee may not exceed $50. A state-sponsored workshop for certification can cost $250 per person.
What to do next
- Verify that the local pro holds a backflow prevention assembly tester certification card issued by the Department.
- Ask the pro for proof of licence and insurance before the reduced pressure zone assembly test.
- Confirm the required annual testing schedule for the assembly.
- Ensure the field-test equipment used is calibrated to a 0-15 psid scale.
- 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.
