I have tried to scrub and scrub and scrub the ole Rough River and Nolin brown stains from my white fiberglass boat with no results. What type of boat cleaner do you all use to get white boats clean as new? While were talking cleaning....I primative camp alot at Dale so I am tracking shale and all kinds of stuff on my carpet. Doug this might be for you....whats a good remedy for cleaning carpets in a boat?