Thread: Over zinc'd?
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Old 02-24-2018, 03:12 PM   #1
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City: Jupiter, Florida
Country: United States
Vessel Name: Black Eyed Susan
Vessel Model: Grand Banks 42' Classic
Join Date: Nov 2016
Posts: 1,403
Over zinc'd?

Having electrical work done on my boat, GI installed, a couple of lesser things, and the electrician mentioned that when he is done I should look at getting smaller zincs as the ones I have will be too much. I have shaft zincs and two 6" X 3" or so, not sure never measured, bars on the transom. One on each side. What test or test result tells me how much zinc to put on the hull? Decreasing the size is problematic with the boat in the water as I would think that I would have to drill new bolt holes for a smaller zinc.
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