I should also add that our facility is located in Rochester, MN. During construction I asked our design engineer several times about a cooling system recirc pump. Each time they addressed the topic with, “you won’t need it”. I would have to think, though, that if you had a recirc pump in your cooling water system, that you would be able to reduce the glycol % due to the constant motion of the fluid. We have talked about moving this direction in the future, if we run into high levels of engine derate due to high ambient temps.