" JimH" jimhUNDERSCOREosudad@yahooDOTcom wrote in message
. ..

"Eisboch" wrote in message
...

" JimH" jimhUNDERSCOREosudad@yahooDOTcom wrote in message
...

"Eisboch" wrote in message
...

" JimH" jimhUNDERSCOREosudad@yahooDOTcom wrote in message
...

If you are not regularly connected to shore power, what will a galvanic
isolator do for you?


Eisboch



I don't know. Thus my original question.

If I am not connected to shore power a galvanic isolator offers no
benefit to me?


Decide for yourself:

http://www.newmarpower.com/pdf/Manual-GI-30&50.pdf#search='galvanic%20isolator%20boat'

www.yandina.com/acrobats/GalvOwnManual.pdf

http://www.usps.org/pipermail/psml/2...st/004944.html

http://webconsult.web.aplus.net/boat...isolators.html


Eisboch




Thank you for the links Richard. It looks like I have some additional
reading to do.

I am not an electrical expert and offered my original questions based on
what Dave Pascoe had offered at his site.

Can anyone cut to the chase on this for me or do I have more homework in
my future? ;-)


This stuff can be straightforward and it can also be as mysterious as the
meaning of life.
Obviously, your tab anode is eroding ..... unless the nut was loose and it
fell off.

My understanding (having chased this problem for a year on my Navigator
before finding the problem) is that if your boat is totally isolated from
the shore power's bonding (ground) system, a galvanic isolator won't help
you.
Not being hooked up to shore power should mean you are isolated.

Even with the best of precautions, the anodes will erode. That's what they
are supposed to do. In my experience, it is not uncommon to replace all the
sacrificial anodes once or twice during the course of a season, if hooked to
shore power and in a slip.

The best investment I made, at the suggestion of some seasoned slip
inhabitors, was to buy one of those zinc fish anodes with the stainless
cable and clip attached. I clip it to the boat's bonding system and adjust
the cable so the fish is about a foot above the bottom at low tide. This
significantly reduced the other anode erosion.

Why your tab anode (only) is prematurely eroding is one of the mysteries of
life to me.

Eisboch