On Thu, 11 Oct 2007 01:15:37 -0700, richard
wrote:

Same boat, same marina for 5 years-slightly different slip this year.
Boat stays in water 8 months out of the year (Boston harbor). always
have mechanic change zincs when winterizing (he says he did so this
year). discovered the prop had been destroyed by electrolysis as well
as damage to engine trims. never seen anything like this before
pulled boat our and had mechanic put new zincs on. Cost for haul,
wash, new zincs, labor and put back in water-$500 plus the cost of
replacing the prop. mechanic and I decided not to wait on engine trims
can anyone tell me more about what to do about the electrolysis? does
anyone think that this is something that could be covered by
insurance. have never made a claim on any of my boats over the year so
have no clue
thanks

You could ask?
Sounds like the new slip picked up some current going the wrong way.
Too bad! It only takes a volt more negative than the prop in the
surrounding water to eat your lunch. Your prop anyway.

Brian Whatcott Altus OK