Quote Originally Posted by JohnTRourke View Post
The only thing that freezes on this early storms is the backflow (above ground part). Take some insulation and put it around the pipes that are above ground. Put a plastic trash bag over the insulation so it doesn't get wet.

This works down into the single digits. (years of commercial irrigation experience).

The in ground stuff will be fine a while longer, the ground holds a lot of heat.
This. I blew mine out too early last year and all of October was hot and dry. Its back up to 60/70s later this week.