Originally Posted by Bigtalljv
it turned out to be real easy to get out. you just have to remove the line fittings that screw into the tank. Access to the fittings is kind of a challenge, I found the little crowfoot wrenches to work well. Once you remove the fittings the tank has no protrusions and pulls right out.
It's dark out but that's what that part of the tank looks like.
I'm not sure what size tank you have now but there appears to be room for close to the 85 gallons the new boats have. You'd have to have it custom made but I understand that it would be a heck of a lot cheaper than trying to get the plastic Zodiac tank. I think I read somewhere that 2.5X the cost of the fuel the tank holds is a good ball park for custom tank costs. Of course that could have from 10 years ago.
I had some time to read this morning when I got into work. People estimate $8-9/gallon for what I assume is aluminum.
If I had to wager a guess, I would have said our (Willard/Zodiac diesel) tanks were stainless but then read this in an article:
"The [ABYC] diesel fuel system standard was reissued in 2005. Now, stainless steel may be used for fuel tanks, provided the metal meets all other relevant ABYC requirements, essentially those outlined earlier for other metallic tank materials. Stainless steel, if used for fuel tank construction, must be of the 316L or 317L alloy variety and a minimum of 0.0747 inch thick."
Since, our tanks were made <2005, they're aluminum and not stainless??? (not anywhere near my boat, I haven't looked real closely).