Backflow Base / Every state / South Carolina
Backflow testing software for South Carolina.
Booking, scheduling, the field test, and the report to the water system, for testing companies in South Carolina.
South Carolina water systems
South Carolina has 527 active community water systems. Each test report goes to the one that serves the address. The largest:
- Greenville Water426,057 people served
- City of Columbia354,068 people served
- Charleston Water System278,771 people served
- Grand Strand W&sa/Bull Creek252,840 people served
- Spartanburg Water System166,364 people served
- Bjw&sa164,829 people served
- Bcwsa Sangaree W/D (0820002)95,345 people served
- Mt Pleasant Waterworks91,500 people served
- City of Rock Hill89,850 people served
- Sjwd Middle Tyger Wtp89,531 people served
Water systems: EPA SDWIS, active community systems, 2026-10-19. Population: Census Bureau 2024 estimates.
Testing companies in South Carolina
165 companies on the tester lists of 1 water system. The first 25:
- 1 CALL BACKFLOW
- 1ST DUE BACKFLOW
- 1ST IN BACKFLOW SERVICE
- 5V TESTING & SERVICES
- A- ALLINBACKFLOWS
- A-1 BACKFLOW SPECIALTIES
- A.M. JACOBS INC
- A+ BACKFLOW TESTING
- AAA CAROLINAS
- ABBAPOOLA LANDSCAPING
- ABLES LANDSCAPES
- ABSOLUTE PLUMBING & BOILER
- ADAPTIVE SERVICES
- AFFORDABLE BACKFLOW SERVICES
- AFFORDABLE JO’S
- AFFORDABLE PLUMBING & BACKFLOWS
- AKINJOBI'S BACKFLOW TESTING
- ALL ABOUT IRRIGATION
- ALL FIRE SERVICES
- ANDERSON PLUMBING & INDUSTRIAL
- ANN'S BACKFLOW TESTING
- AQUA DOC IRRIGATION
- AQUA FLOW SC LLC
- ARMOR FIRE SERVICES
- ARTIGUES LANDSCAPING GROUP
From Charleston Water System (dated July 31, 2026). Checked October 19, 2026. A list shows who may test, not who is good; ask the water system for its current list.
Cities
- Charleston →157,665 people
- Columbia →144,788 people
Testing in South Carolina
Who may test is set by the state, the water system, or both. Ask the water system you will test for which certifications it accepts before your first test.
The software
- Bookings from a booking page, your own website, and an AI receptionist on your phone.
- Schedule board and route for each tester.
- Field app that scores every test, even with no signal.
- Test reports sent to the water system that serves each address.
- Card payments to your own Stripe account, and yearly renewals that charge after the test.
- Client portal for HOAs, property managers and contractors.
- $50/month flat: no per-test fee, no cut of payments.
- Every feature →What the app does, part by part.
- Compare →Next to other backflow and field-service software.
- Start free →No card. $50/month or $500/year once you go live, 45 days free.
- Free exam prep →Study questions, practice exams, device tests, a VR wet lab.