I live in Illinois. It has been pretty cold but the ground is just starting to freeze. We blew out my lines on December 4th. The water in the lines wasnt frozen, but some of the heads didnt come up. They were just frozen at the top of the head. We blew out the whole system. My question is since some heads didnt come up is there still water in them, and I am not sure the backyard zones came up at all. I have 13 zones. The first couple zones emptied a lot of water. Will I be ok seeing I did drain ...
