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Old 09-21-2020, 04:52 AM   #14
mvweebles
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City: Saint Petersburg
Vessel Name: Weebles
Vessel Model: 1970 Willard 36 Trawler
Join Date: Mar 2019
Posts: 7,179
Quote:
Originally Posted by R. Bush View Post
Amongst those that haven't the response upon enquiry runs something like "It's not a problem - the boat has spent it's entire life in fresh water." Is that a valid argument; or is a fresh water boat just as likely as a salt water boat to have a rusted out tank?
Most tanks rust-out due to water intrusion through the deck-fills or deteriorated fasteners in teak side-decks. Rain water is the main culprit, not seawater.

Freshwater boats have their benefits. They are used less, and often in colder climates with less direct sun and sometimes even stored in covered/heated spaces over the winter. They retain their youthful glow well into middle age - sort of a "Christi Brinkley" of the boat world. But for fuel tanks, while saltwater leak-down would cause more corrosion than fresh, over time the constant drip of rainwater is going to be the issue.

Peter
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