On Aug 16, 9:23 pm, "Lew Hodgett" wrote:
"Robatoy" wrote:

Electrolysis from an AC source?

Absolutely.

Just check any boat at the yacht club that has a shore power system
grounded to the water instead of back to the service entrance.

Those installations EAT anodes.

Ever hear of "ground loops"?

Yes of course. But how does the rectfication occur so that you're left
with an anode/oxygen only bubbles?
Are you talking about cathodic protection of propellor/shafts and even
a steel hull? The good ol' galvanic sacrifice?

Just trying to learn something here.....