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When I bought EFAKI in 1996 I was little aware of galvanic corrosion that
occurs in boats. So in the initial commissioning that followed the purchase of
the boat I didn't do anything relevant.
The signs of electrolysis in various spots of the boat I thought that they
were just only signs of age. In the following years I did learn about
electrolysis and I added a zinc to the propeller shaft as the engine had her own
(the only on the boat). What I didn't do was to connect every metallic part of
the boat to a zinc. Well this is what I did in the 2002 yearly maintenance
hauling out.
I spread a heavy grounding wire from the bow of EFAKI to her stern connecting
every metallic part on the way like anchor windlass, mast, stanchions, etc. This
wire was connected to a heavy zinc that was placed in the "deeper"
place of the hull to ensure that it will always be underwater.

You can see the wire (yellow - green) in the above pictures.
What has to be done now is to connect also the through hull fittings to the
grounding wire (with hose clamps) and observe if electrolysis on my boat has
been stopped. I'm thinking also of drilling the keel and placing a stand alone
zinc there too, since the keel is not connected to anything.
This page was last updated on October 29th 2002.
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