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-   -   Should I fear steel tanks? (https://www.trawlerforum.com/forums/s18/should-i-fear-steel-tanks-57348.html)

JESSEDIVER49 04-24-2021 08:07 AM

Should I fear Steel tanks
 
Not familiar with the N46 but generally, a good boat surveyor should be able to inspect and advise on the tanks. Eight years ago I bought a '84 Grand Banks 42 with its original steel tanks. The surveyor found corrosion issues on the tops of both tanks below the fill tubes where salt water found its way through compromised deck seals. When I asked how to fix this, he said "replacement". The seller gave me a price reduction and then some to cover replacement costs. It all turned out well. I went aluminum.

sunchaser 04-24-2021 08:24 AM

Quote:

Originally Posted by JESSEDIVER49 (Post 999163)
The surveyor found corrosion issues on the tops of both tanks below the fill tubes where salt water found its way through compromised deck seals. When I asked how to fix this, he said "replacement".

Jesse
Does the vessel have teak decks?. Even if not screwed down, deck fills through teak can prove troublesome in making a good seal with fill tubes. I know an ex GB dealer who said a good annual cleaning of tank tops was helpful in this regard. The same may well apply to your Al tanks.

JESSEDIVER49 04-24-2021 02:34 PM

Should I fear steel tanks?
 
Hi Sunchaser,
Yes, my deck is teak over fiberglass. I re-sealed where the fill flange meets the teak deck. That is where I was told by the surveyor the infiltration occurred. I also routinely check the area on top of my tanks to make sure there's no excessive oxidation. Don't know how to get new tanks in a N46 other than cutting a section of the hull but for the GB42, my tank guy designed 2 stacked tanks for each side and was able to get them through the salon door and into place by moving only the gen-set forward. It was still a labor intensive project.


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