Backflow Base / Every state / Missouri / St. Louis
Backflow testing software for St. Louis, Missouri.
For testing companies working St. Louis's 279,695 people: booking, routes, the field test, and the report to the water system.
Water systems based in St. Louis
- Mo American St Louis St Charles Counties1,111,000 people served
- St Louis City Pws304,709 people served
- Terre Du Lac3,200 people served
- Indian Hills Utilities Operating Company1,600 people served
- Lake Sherwood Subd1,100 people served
Plus 34 smaller systems based here. Households near St. Louis may be served by another system; Backflow Base matches each address to its own. All 1,406 in Missouri →
Water systems: EPA SDWIS, active community systems, 2026-10-19. Population: Census Bureau 2024 estimates.
Other Missouri cities
- Kansas City →516,032 people
- Springfield →170,596 people
- Columbia →130,900 people
- Independence →121,629 people
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.