I have an interesting winter problem. The Orbit sprinkler controller, which has a brass screw-on fitting, has seized on its faucet (a zinc or nickel coated recessed stopcock — a winterized outdoor faucet if you will).
The two appear to have bonded chemically - I tried to remove with a wrench and I almost sheared the faucet off the wall. I tried seeping in some WD-40 for starters, but it does not seem to have done any good.
Any suggestions? Am I the only doofus with a sprinkler controller seized atop its faucet? It needs to come off for the winter, there can be no water beyond the stopcock's valve in the system, or the winter will freeze it.