[dmoore]

That would be rain/washdown water from the rod holders...they are suppose to drain from plastic fittings on each end of the rod box through plastic tubing attached to the bottom of the rod holder & onto the deck. The plastic drain tubes fall off of the rod holders and allow this water to run into these areas. Easy fix really......check for the tubes broken or pulled loose from the rod holder.....that's probably the problem. I replaced all four fittings,hoses & vinyl adapters on my 21...been dry ever since...I also keep those access doors open all the time to keep a lil air circulating, but..... I am fortunate enough to have a dry place to store it too. If/when you buy it you'll have to post some pics....best of luck! Dave