We are completing the purchase of a 1998 Voyager 530. During the survey I noted water on top of a plastic bin stored just behind the port fuel tank. Going back into that corner looking up it appears that rainwater can enter directly through the vents mounted aft of the salon windows. There appears to be some kind of gutter system. But to my untrained eye this appeared to be a really weak attempt to manage water coming through those vents. Has anyone invented a fix to keep the water out or drain it away?