What is stray current corrosion, and how do you prevent it?

Question by CassieA: What is stray current corrosion, and how do you prevent it?

What is stray current corrosion and how do you prevent it from happening to your boat? I have heard of zinc anodes, isolation transformers and galvanic isolation. What do you recomend and why?




Best answer:

Answer by rutager
Marinas or places with a lot of electic current being leaked into the water are the wosrt for electrolisis, If your boat is permanently moored in these places it is recomended that you protect your boat at a minimum with sacrificial anodes at least on your shafts props / Stern drive and hull. Out boards generally he anodes inbult that are replacable.

After 12 months in the water the condition of your anodes should tell you if you should take other measures to protect your boat.

If your boat is trailerable and is not left in the water it will be fine

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