OK, I have found that keeping from the rub rail up to be pretty troublesome. You know the trails of dirt left when rainwater washes dirt and dust off of the topside of the boat (especially the canvas). Soap and a brush do not seem to do anything. What does everyone use? I need something strong enough, but will not strip the wax off. In fact an orbital waxer seems to be the only good way I have found to get rid of this.