Protecting Calgary's Water Supply
Backflow preventers are critical safety devices that protect Calgary's drinking water supply from contamination. If your property has a backflow preventer, the City of Calgary requires annual testing to ensure it's working properly.
What is Backflow?
Backflow occurs when water flows backward through the plumbing system, potentially contaminating the municipal water supply. This can happen due to pressure changes in the water system.
Who Needs Backflow Testing?
- Properties with irrigation systems
- Buildings with fire suppression systems
- Commercial properties
- Properties with boiler systems
- Any property with a backflow preventer installed
Testing Requirements
The City of Calgary requires annual testing by a certified tester. Test results must be submitted to the City to maintain compliance. Failure to test can result in fines.
Flow Forge Mechanical provides City of Calgary certified backflow testing. Contact us to schedule your annual test.



