10/08/2026
Without a sacrificial anode one of the metals in the system is forced to sacrifice itself to the other, more noble, metals. Luckily, in this case, it was the least expensive and easiest metal to replace, the propeller nuts. Popping these shaft zincs on there securely will prevent any further corrosion. The boat is being hauled out for paint and other maintenance items soon so the prop nuts will be replaced at that time.