GROUND FREEZE A friend of mine lives in the Chicago area and is having a ground loop system installed. They are running the loops around 15' from her water well head. All the loops appeared to be 5-6' deep and 500' loops. 3 of them. The 1-1/4" lines going out to the manifolds are insulated with armaflex until about 15' from the well-head. She is told it will be fine, but I am worried. I've heard of these systems freezing up a great deal of ground. Any thoughts?