Temps will drop well below freezing several nights beginning this weekend and that can damage sprinkler systems not yet winterized. The most vulnerable part of the system is also the most expensive component.
The backflow prevention device, because it is above ground and contains water, can easily freeze, resulting in repair costs and possible property damage.
If your system has not yet been winterized, follow the simple steps in this video from the City & County of Broomfield.
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