What should be done to the backflow device in preparation for winter?

• A. Remove it from the system
• B. Cover it with a freeze blanket
• C. Replace it with a new device
• D. Turn it on and off regularly

Answer: (B)

In preparation for winter, covering the backflow device with a freeze blanket is an effective step to protect it from freezing temperatures. Backflow devices are crucial components in irrigation systems that prevent the backflow of contaminated water into the potable water supply. During winter, when temperatures drop, these devices can be at risk of freezing and causing damage.

By using a freeze blanket, you provide insulation that helps maintain a stable temperature around the device, reducing the risk of ice formation. This preventive measure is particularly important in regions where temperatures frequently fall below freezing. Insulating the device not only protects its functionality but also extends its lifespan and ensures that the irrigation system can be efficiently restarted when warmer weather returns.

Other options do not effectively address the specific needs for winter preparedness of backflow devices. For instance, removing the device entails disconnecting it entirely, which could lead to complications when trying to reactivate the system in spring. Replacing the device is unnecessary and cost-prohibitive if it can be adequately protected from freezing. Regularly turning the device on and off does not provide any protection against the cold and may not prevent damage from frost. Thus, the choice of using a freeze blanket aligns with best practices for winter preparation of backflow devices.