I'm thinking of adding more gas tanks to my craft to increase the fuel range. I run a 22' SeaSport with a 501 Volvo Penta. It has a 70 gallon tank now, but this size limits where we want to go without bunches of fuel cans on deck. Our craft has a self bailing (sealed) deck. There are sealed places in the deck which appear to be unused space. Has anyone had any experience opening such spaces and adding more tanks? Like: How did you reseal the deck? Did you use aluminum or plastic tanks? Are there tricks to know about plumbing the tanks together? Any other aspects I should be thinking about?
I appreciate any input, IronJay