Cross Connection Testing in Calgary

Protect your potable water supply from backflow contamination. Get tested annually by an American Water Works Association-certified professional.

Naiad service technician outdoors

Watch: Cross Connection Testing

What is a Cross Connection?

A cross connection is any point where an external system is connected to a potable water supply.

Such connections usually require a “cross-connection device” that prevents water from flowing back to its source. For sprinkler systems, cross-connection devices are necessary to protect your municipality’s drinking water supply from contaminants such as fertilizers or pesticides.

Why Does it Need Testing?

We need to be sure that cross-connection devices work correctly, or a minor source of contamination can become a significant issue over time.

Backflow can be caused by a drop in pressure at the potable water source (siphonage) or an increase in pressure in an external system (backpressure). In either case, backflow usually goes unnoticed. By testing your device each year, you can rest assured that it protects your water supply.

Book Service
Naiad Service Technician
Backflow prevention device

Certified Testing Procedure

An improperly installed device will fail, both in terms of operation and testing.

Before activating your underground sprinkler system this spring, you must have your cross-connection device tested by a certified tester registered with the City of Calgary or your local municipality.

Book Service

Cross Connection Test Frequently Asked Questions

Here are a few frequently asked questions about this process:

What is an example of a cross-connection?

A common example is a hose connected to a garden tap, potentially linked to an irrigation mainline. This setup requires a protective cross-connection device.

What does a cross-connection do?

It connects external systems like irrigation to the potable water supply, requiring devices to prevent backflow.

What are the potential risks associated with backflow contamination?

Backflow can introduce contaminants like fertilizers into the drinking water supply, posing health risks.

What are the consequences of not testing cross-connection devices yearly?

Failure to test can lead to undetected malfunctions, risking contamination, possible fines and non-compliance with health regulations.

What happens if a cross-connection device fails the test?

Failing devices must be repaired or replaced to ensure the water supply remains protected from contamination.

Are there any regulations or requirements for cross-connection testing in Calgary?

They are required annually wherever there is a cross connection that could potentially contaminate the water supply. Underground sprinkler systems are a prime example, as dirt and chemicals such as herbicides or fertilizers can enter the system unnoticed over time without causing other issues. 

The City of Calgary requires you to have your sprinkler system’s cross-connection tested before the system is activated each year.

Can homeowners perform cross-connection testing themselves, or is it necessary to hire a professional?

No – Homeowners are highly advised to hire professionals like Naiad for cross-connection testing to ensure it meets regulatory standards and is effectively executed.