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Old 03-07-2013   #9
swampcreek
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Re: Zinc Or Aluminum Anodes On Mid Chessie

Quote:
Originally Posted by PalmettoSailor View Post
Why fix what ain't broke?

If you don't have any evidence of galvanic corrosion, using cheap and commonly available zinc anodes, why change?
We may very well have this boat a long time, I just want to do whats best for it. Nowhere do I read any technical articles that zinc is better in brackish water, I read just the opposite, the only promotion of zinc over aluminum are the arguments like "that's what we always have done". I've heard of different anodes before but never concerned myself with them but our present boat cost more than all my previous boats combined. I've had some real adventures trying to disassemble old outdrives and lower units, I wonder how much easier some of those jobs might have been if they were protected with aluminum alloy.

To put it another way many cars were produced without oil filters way back when, those kind of caught on too.
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