Well I finally got around to starting things up, and it seems like everything is working. The only issue I had was one of the test cocks on the vacuum breaker had a leak due to a small hole in the cap. I may try to grade around the valve box to minimize the amout of water that can get in there and freeze next winter. Thanks to Gator Guy and Central Irrigation for your comments.
It was finally warm enough yesterday to play outside with the kids. While I was out, I noticed that my valve box cover was pushed up some. To my surprise, it was frozen and from what I could see the box looks like it filled with water from melting snow and is now a giant block of ice. All 6 valves and the manifold are just encased in ice. My system is blown out so the manifold and valves should be empty on the inside. How likeley is it that my valves and manifold will be destroyed when the ices ...
