Backflow Base / Every state / Maryland / Baltimore
Backflow testing software for Baltimore, Maryland.
For testing companies working Baltimore's 568,271 people: booking, routes, the field test, and the report to the water system.
Water systems based in Baltimore
- City of Baltimore1,600,000 people served
- Johns Hopkins University2,058 people served
- Keswick Multi-Care Center575 people served
- Sunnybrook416 people served
- Campus Hills Water Works250 people served
Plus 3 smaller systems based here. Households near Baltimore may be served by another system; Backflow Base matches each address to its own. All 425 in Maryland →
Water systems: EPA SDWIS, active community systems, 2026-10-19. Population: Census Bureau 2024 estimates.
Other Maryland cities
- Frederick →89,537 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.