Re: aluminum fuel tank 12 years old
If it's under the deck and stays wet all the time, keep a very close eye on it. This is particularly true if used in salt water. Problems will vary from boat to boat depending on how the manufacturer allowed for water to drain out from under the deck. I participated in a Coast Guard survey a few years back on this subject and the results showed a high rate of leakage in under-deck aluminum tanks after a few years.