Skip to Main Content
Loading
Close
Loading
Create a Website Account
- Manage notification subscriptions, save form progress and more.
Website Sign In
Government
Residents
Businesses
Visitors
I Want To
The mission of the City of Flagstaff is to protect and enhance the quality of life for all.
Search
Home
Government
Divisions
Water Services
Wastewater
Backflow Prevention & Pretreatment
FAQs
FAQs
FAQs
What is backflow?
What causes backflow?
What is backsiphonage?
What is backpressure?
How can backflow be prevented?
What is a backflow assembly?
How is an assembly approved?
Who is required to have a backflow prevention assembly?
How do I know if I need a backflow prevention assembly?
Is there a general compliance schedule and process?
Who can install a backflow prevention assembly?
Where should a backflow prevention assembly be located?
Who is responsible for testing and maintaining the backflow assembly?
I have multiple testing dates for the backflows at my property. Can I consolidate the dates?
I have an irrigation or fire sprinkler backflow assembly I no longer use. Can I remove it?
View All
/FAQ.aspx
Backflow Prevention
Installation Instructions
Disconnection and Removal Instructions
Backflow Device Removal Request
Additional Resources
Pretreatment Program
Archived Pretreatment Code Changes
Part 1: FOG Manual and Scavenger Waste
Part 2: Cross Connection and Local Limits for SIUs
Fats, Oils, & Grease (F.O.G) Program
Dental Amalgam Rule
FOG SwiftComply FAQs
Car Wash Mud Sump
Enforcement Response Plan (PDF)
Contacts
Forms
FAQs
Link to Water Services Main Page
Arrow Left
Arrow Right
[]
Slideshow Left Arrow
Slideshow Right Arrow