Zincs in salt water, magnesium in fresh. Install magnesiums, even if you
currently do not have a problem. Things can change and if they do, you will
be protected.
Steve
"Dave Mac" wrote in message
om...
Hi I was wondering if anyone knows if you need to have zincs on your
prop shaft in fresh water?The one on mine looks original(20+ years)
and still appears 99% intact.
Thanks Dave