[quote=Wolfman]I've heard of people putting spray foam in thier hulls. Although I would be seriously scared to try it.
Even better than your idea is getting some supplemental floatation bags that are used in rotomolded kayaks. These are really important for kayaks with open hull areas. Here's an example I googled up (never seen the site before):
http://www.westerncanoekayak.com/product_spec.php?item_description_id=5490
They are approximately the right shape, tough and are inflated with a built in tube you blow into so you are unlikely to be able to overinflate them enough to hurt the boat.[/quote]
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