A customer of mine in the yacht resto biz bought some calcium chloride pellets from me recently for the purpose of pulling moisture out of a waterlogged compartment in a yacht he's working on. He said the way he does it is to drill a 1" hole and insert a large funnel full of these pellets in the hole, and overnight it will pull it's weight in moisture out of the compartment. He did say you'd have to be real careful using it because the pellets (being mostly salt) are very corrosive.
I wonder if it would be possible to do that with our Aquasports? Seems like it might be useful in pulling moisture out of the waterlogged foam under the floor without having to cut the floor out...
A 50lb bag retails around $20