Just for the heck of it a coupla months ago I went down to West Marine &
bought a corrosion anode, put a couple of ty-wraps on it so I could
retrieve it & chucked it into the overflow coolant tank (behind the license
plate).  Just pulled it out & it looks shinier than new!  Then it struck me
- all the different anodes WM had either screwed into or were otherwise
attached to something *metal* on a boat...outboard drives, prop shaft
housings, etc.

Thus the question for all the electron cognizenti out there - does an anode
have to be electrically attached to a vehicle ground, or is what I'm doing
now eventually going to work?  i.e. for this to work, do I have to fish a
wire out of the tank to connect the anode to a convenient ground???

Austin