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After looking at a old thread, my question is how many anodes are there? One post says 3, or 1 per engine. Is there more than just one on the side of the jet?
It was dirty after a winter in the water,but those were crusty corrosion not barnacles. But that could give me a reason to wear a pirate hat next time I head out on the lake.
There are also different types of anodes for different water exposures. As I recall zinc works best in saltwater, magnesium in fresh water, and aluminum in brackish, salt, & fresh water. https://performancemetals.com/pages/sacrificial-anodes-faqs