"Tom Shilson" wrote in message
news
JAXAshby wrote:

huh? zincs and/or soapy water protect a fiberglass boat from sal****er?
Since
when?

Zincs protect against galvanic corrosion, which is more of a problem in
salt water than fresh.

Also, clean never hurts.

Sacrificial Zincs are designed to deliberately corrode protecting the rest
of the yacht.