Zincs in freshwater

Zincs in freshwater

Postby qman15 » Mon May 21, 2007 5:44 am

What's your experience in changing your zincs in freshwater?

I pulled a number of zincs and they all appear to be in pretty good shape.

So, how long do your zincs last in freshwater?

Thanks for sharing your experience, Jim
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Postby Tom Overs » Mon May 21, 2007 6:49 am


You should be using Zinc in Salt water and Magnesium in fresh, neither of them work correctly outside of their design scope.

Have a read on this site and it should answer your questions.


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Postby John Gadow » Mon May 21, 2007 8:19 am

In principle, I agree with Tom's recommendation on type of zincs for fresh water. In practice, we change our zincs about every 3 years, just for fun. Fresh water is very kind to metals which would suffer in salt water. Before launch this Spring, the techs at our marina looked at our two year old zincs and pronounced them good for another year. That being said, we did change zincs several times during our Great Loop trip.
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