Anodes

[jlogger]

I just read that zinc anodes are for saltwater use only. First time I've heard that. Is that true? Is it a case of shorter life expectancy or complete ineffectiveness or is it complete BS?

 

Thanks

[guffins fisherman]

Zinc is for salt. Magnesium is best for freshwater.

Sent from my moto z3 using Lake Ontario United mobile app

[L&M]

Here is a pretty good chart that breaks different scenarios down.

 

https://www.boatzincs.com/pdfs/Chart_B-Which_Anodes_Should_I_Use.pdf

[Sk8man]

How can you tell which you have on the shaft of your Merc outboard (Saltwater Optimax never used in the saltwater environment)?

Edited April 24, 2020 by Sk8man

[Fat Trout]

28 minutes ago, Sk8man said:

How can you tell which you have on the shaft of your Merc outboard (Saltwater Optimax never used in the saltwater environment)?

If you didn't add it.  It came from the factory with Zinc.

[jlogger]

Thanks for the replies. Another lesson learned.

 

For sale- complete set of zinc anodes for 96 Alpha One Gen II out drive. $2,500.00 OBO. 

[Sk8man]

10 hours ago, Fat Trout said:

If you didn't add it.  It came from the factory with Zinc.

Yes I suspected that but I am wondering if there is a way to tell by looking at it because I think mine was replaced a few years ago.when I had some servicing done.