" JimH" jimhUNDERSCOREosudad@yahooDOTcom wrote in message
...


I will be adding a magnesium tab on the outdrive and take up your
suggestion of the submerged magnesium fish connected to my grounding
system. A friend of mine who had an aluminum hull boat (Marinette) used
to dunk one of those anodes whenever he got into the dock.


Are you in salt water or fresh?

Seems to me that there are different anode materials for each.

Also ... this may help explain some of the mystery ... pertains to salt
water ..

http://www.boatus.com/boattech/casey/23.htm


Eisboch