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Message: <blockquote data-quote="MrGiggles" data-source="post: 520341" data-attributes="member: 22613">Are the holes accessible from the inside? In the second picture, it looks like there's some rusty steel inside the hull behind the hole, if so, the corrosion is likely a result of the dissimilar metals reacting.There are pop rivets made with a closed end that you can use below the waterline. I've never seen them on the shelves anywhere, but you can order them. As mentioned, regular pop rivets will leak.It could be fixed if you're willing to put in the work. I'd make double patches of sheet aluminum, sandwich the hull between them with a strong sealant on both sides. You could fasten them with solid rivets, closed pop rivets, or stainless/aluminum nuts and bolts.I had a 14' Quachita semi-v that had a 12" gash in the hull from running into something. I patched it on both sides just like I outlined above, never had any trouble with that area again. I did pop the hull again in the rocks, the hull was paper thin on that thing... Not a tough boat at all.</blockquote>