Backflow Base / Every state / Washington / Spokane
Backflow testing software for Spokane, Washington.
For testing companies working Spokane's 230,609 people: booking, routes, the field test, and the report to the water system.
Water systems based in Spokane
- City of Spokane346,138 people served
- Spo Co Water District 3 Sys 119,035 people served
- Modern Electric Water Co18,487 people served
- Model Irrigation District #187,903 people served
- Pasadena Park Irrigation District 176,269 people served
Plus 37 smaller systems based here. Households near Spokane may be served by another system; Backflow Base matches each address to its own. All 2,301 in Washington →
Water systems: EPA SDWIS, active community systems, 2026-10-19. Population: Census Bureau 2024 estimates.
Testing companies in Spokane
54 companies on the tester lists of 1 water system. The first 25:
- 1st Choice Testing
- A-Rated Backflow Co.
- Aall-Rite Lawn Care Services LLC
- ABC Fire Control, Inc.
- Action Drain & Plumbing
- Advanced Fire Systems
- Alpine Fire Sprinklers
- Apollo Mechanical
- Aqua Pro Sprinklers
- B.A. Testing, LLC
- B&B Sprinklers
- Backflow Blitz
- Backflow Johnny
- Backflow Tri-Cities
- Backflows Northwest
- Bastin Backflow Testing & Service
- Bigfoot Backflow
- BKC Enterprises, LLC
- Bulldog Rooter
- Charlie's Backflow LLC
- COSCO Fire Protection
- Cutting Edge Landscape
- Del Pizzo's Lawn Care & Service LLC
- DeMara Services
- DW Landscape
From City of Spokane. Checked October 19, 2026. A list shows who may test, not who is good; ask the water system for its current list.
Other Washington cities
- Seattle →780,995 people
- Tacoma →228,202 people
- Vancouver →198,992 people
- Bellevue →154,377 people
- Kent →136,588 people
- Everett →113,011 people
- Spokane Valley →108,267 people
- Renton →105,543 people
- Federal Way →100,252 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.