"geneb321" wrote in message
...
There is an excellent article on testing for grounding problems between
shore power and boat at: http://www.yandina.com/electrolysis.htm


I don't recommend following the instructions at that web site. Creating a
potential safety hazard so that you can eliminate galvanic corrosion is not
a good trade off in my book. You would also have to eliminate just about
every piece of 110 volt gear (TV, ice maker, battery charger, etc.) or come
up with elaborate ways of isolating them.

Rod