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Old 08-10-2015, 08:34 AM   #21
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That tank rust looks minor next to mine. I peeled three layers/sheets off before I got to solid material. The solid material had holes in it. Mine are 1989. There is another good thread on this subject.
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Old 08-10-2015, 09:13 AM   #22
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If that much rust is on top and there is a deck leak,I'm sure that there will be MORE rust were that water pooled under the tank. Replaced my tanks as rust was at seams and inside the tank were the tank cleaner had broken rust free dearing the cleaning . The tanks will need replacement at sometime in the future.
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Old 08-10-2015, 09:39 AM   #23
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Quote:
Originally Posted by stornoway7 View Post
One option if you have leaky rusted tanks that are hard to replace is to use something like an ATL fuel cell.Either the Fluorocell and Supercell models.
I'm interested to hear from anyone who has used one.
I've done a few tank replacements and it gets serious very quickly.
Might save ripping an interior to bits.
My main tank is about 3100 gallons and it's looking suspect rusty inside and out,it also is underneath 3 cabins,2 bathrooms and a hallway,so removal is a destructive process.
At least it has manholes so I can climb inside.Can't wait.
Anyone used one ?
I have used them helping a friend deliver a boat but never replacing they seemed very well made

BTW we need more pics of your boat she is a beut
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Old 08-10-2015, 10:02 AM   #24
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I am familiar with ATL and FuelSafe cells in auto racing applications. They are made to very high standards to meet the specifications of various sanctioning bodies worldwide and I would assume their marine cells would be no different. However, the quality comes at a high price. IIRC an 18 gal fuel cell for a low horsepower formula car was over $1800 (included the fillplate) in 2006. The mode of fatigue failure was either age combined with embrittlement of the polymer due to ethanol (older cells) or most commonly chafe points at the corners of the cell. Vibration producing relative motion between the "bladder" and its containment structures will eventually cause leaks if this is not compensated for (I lined the structure bottom with thin sheet neoprene as this is where it failed most often). I would think that in an application using an existing fuel tank as the containment structure one must make sure the interior of the structure is smooth/non-abrasive...not likely if the interior of a metal tank is severely corroded...and the area where the baffles were removed is ground smooth. I would guess that the prep work and fuel cell cost may exceed the cost of other more conventional replacement options. This, of course, is speculation based upon experience in non-marine applications. YMMV
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Old 08-10-2015, 11:34 AM   #25
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Great input! Thanks everybody.
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Old 08-10-2015, 05:23 PM   #26
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Well, my offer on the 1985 Ocean Alexander 38' was accepted. Survey (including mechanic) and sea trial is Thursday. Wish me luck.
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Old 08-10-2015, 05:59 PM   #27
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Good luck...I hope it all works out well for you!
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