Kinda what I did. I did not pull the tank completely out , just opened them like a tin can and had custom tanks put inside , made a new floor etc. Drilled a bunch of 2" test holes to see how the foam was underneath the tanks and was satisfied to go forward .... no way was I about to blow up the entire cockpit.
Only one was leaking but I wasn`t about to go thru that work and not do both.

At the same time moved both fills to one side to make filling easier (love that mod) and set the tanks up for return regulators.
Lost capacity but I really don`t need 300 gallons of fuel. now I have 150gal capacity. it works for me.

This was the second set of tanks, they had a build date of 2001, my boat is a 2000. whomever did the second set of tanks used the square ones and they were thin in my opinion and rotted oout, they also put the boat back together under a bind/twist and had the floor ply running in the wrong direction which also caused flex. when mark was taking out the helms and did the floor he heard the boat pop and lay flat on the myco. he also replaced the drain tubes from bow under them as there was some water intrusion these tanks are a thicker gauge and are 135 gallons each. Mark squared everything up and the boat tracked better. I heard that the bump out was where all the original tanks leaked...Rob

Full service......gotta luv it.........that mod is the shizzle ....

This is a horrible job to do and I am helping my glass guy with the job, in hopes that I will have it back for the rendezvous in June but its not looking good! I think I am going to order the tanks through Sunshine tanks out of Florida, they have done a lot of other Cig tanks in the past. Hope to see you all at the rendezvous, and I will keep you up dated.

Slid them back in there, and when i say slid I mean half day of ****ing around to get em all the way in .

Man you guys are concerning my chit. How did you notice leak? Smell?

You will know, the smell is overpowering, i always pop hatch before i start engines.. it wasnt so much top guns as a design flaw in the Tiger tanks

As an after thought I used to think I smelled gas after a run but it would go away. It was only after putting it on the trailer to do some work to it that I found gas pouring out of the bilge drain holes. That was a bad day!