my boat cover has become rather gross. Whats the best way to clean it? I hardley use it & it has sat in a corner but now I want to put it on to put the boat away for the winter. Any suggestions please. Thanks in advance

Buy a house with a garage for the boat

Clean with a mild detergent and water. Use a soft scrub brush. You will have to waterproof the cover again. You can buy a silcone based water repellent from most marine stores. If you can't find one let me know. We can do a phone order and ship you some.

Thanks for the help. The Boat doesn't sit outside I was just going to store it in my warehouse for the winter to get it out of the way. I just want to put the cover on it to try & help w/ the dust & so forth so waterproofing shouldn't be an issue.