JT I had a fuel tank covered by insurance. I had tried to go through the manufacturer at first but they refused to work with me, they would not return phone calls, emails or registered letters. The insurance company ended up covering it as a 'manufacturer defect'. Boat was only three years old and the tank rotted out from corrosion. It had hundreds if not thousands of pin holes in it. It had to do with the way it was installed. I had to have the insurance company's surveyor come out and they determined it was improperly installed and paid out the bill for parts and labor minus the deductible. It ended up being about $3,300 back in 2008 for a 100 gallon tank when it was all said and done. I had not glass work either, the deck just unscrewed and gave complete access to the tank.