TL;DR: Backflow devices in Christchurch are typically tested once a year, though the exact frequency may depend on the device type and the property. Regular servicing ensures the device is working correctly and meeting any compliance requirements.

Why regular servicing is important

Backflow devices are designed to protect the water supply from contamination.

Like any mechanical component, they can wear over time.

Regular servicing ensures they will operate correctly if needed.

Typical servicing frequency

In many cases, backflow devices are:

• Tested annually
• Serviced as required based on condition

This yearly check is commonly used to confirm that the device is functioning properly.

What can affect servicing requirements?

The frequency may vary depending on:

• The type of backflow device installed
• The level of risk associated with the property
• Any local compliance or regulatory requirements

Commercial and higher-risk properties may have stricter requirements.

What happens during a service

Servicing a backflow device typically involves:

• Checking the operation of the device
• Testing to confirm it prevents reverse flow
• Identifying any wear or faults

The goal is to ensure the device is ready to function if needed.

What happens if it is not serviced

If a backflow device is not checked regularly:

• Faults may go unnoticed
• The device may not operate correctly
• Compliance requirements may not be met

Regular servicing helps avoid these issues.