I have a shaving mirror that threads to the shower pipe like a shower
head. The shower head then threads onto the shaving mirror assembly.

this pic makes things clear
http://picasaweb.google.com/techman4...28747566020722

Recently the whole mirror assembly started leaking water in different
locations. I would like to remove it. The problem is that is stuck.
I tried different wrenches and even some WD40. It wont come off. I
don't want to apply too much force, as I may damage the shower pipe
itself.
Is there anything else I can try?
Thanks