[gasdad]

Alum boats are fine in saltwater but one big problem is electrolysis. Make sure you have enough sacrificial anodes attatched to your boat. Had a friend that had a heavy guage custom welded boat and after 15 or so years of use exclusively in saltwater, he had small pinholes develop at the bottom of the boat. Diagnosis was electrolysis. He did have some sacrificial anodes but maybe not enough??/and/or possible grounding issues with electrical portion of boat??