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					Originally Posted by  AC2717
					 
				 
				thank you for the idea, it is aluminum and it is a welded hull, but there are some rivets I holding the bracing for the floor (floor supports are aluminum and built with the boat) I don't believe seeing any below the waterline except the stern, think I will pull it and do it, 
 
any others? 
			
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 See if you move the drain plug tube. They can loosen or become misshapen to cause a leak. 
Captain Tolley's leak-sealer should work at the drain plug tube (and loose rivets), but will interfere in getting a good weld should heli-arcing be necessary.