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Old 11-08-2010, 11:50 AM   #10
Bendit
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City: Auckland
Country: New Zealand
Vessel Name: Pioneer
Vessel Model: Westcoaster 53 converted to pleasure
Join Date: Nov 2007
Posts: 286
RE: Water in an aluminum feul tank

Pioneer's aluminium tanks are 30 years old.

We had a problem with the port tank along a weld line where water*caused pitting on the inside of the tank which eventually became a pin-hole leak. The boat had a history of sea-water in the tanks due to a crazy fuel-filler and breather design, since remedied.

An old engineer told me how to fix the leak - with a ball-peen hammer. Just peen over the weld where the leak is. Fortunately the leaky area*was fairly accessible and it has been OK for 4 years now.

I now use an additive which claims to remove water, and the bug, from fuel.
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