I scoop out the wet ashes and then turn the thing over and run a hose over it. Not sure if I understand the question, either. Actually, I usually just turn the whole thing over (this happens to my WSM a lot, too.)
Edit: Oh, I see the Touch & Go is the one with the propane attachment. If the kettle part doesn't come out, I guess I'd scoop out as much as I can by hand or put it on its side and scoop it that way.