Quote:
Originally Posted by Ski in NC
Probably the zinc being neglected. I've got near the same unit and the zinc is about gone in two years.
Also when installing my unit (twelve or so years ago) the instructions were specific to not connect the gearbox to boats bonding system. You might look into that. Maybe ask the MFR about that as well.
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That is my understanding as well. Their alum anode protects the unit independently.