[downeast450]

Anyone have any experience with this?

Corrosion Reference Electrode and User's Guide
by ABYC-Certified Corrosion Experts

Corrosion Reference Electrode Product Specifications

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[StormBay]

Just used it today actually, to check our boat and a friends boat. What do you want to know?

 

[downeast450]

Storm,

I have read what is available, without buying one, on the sellers web site. It seems straight forward. What I would like to do, in addition to evaluating my boat's condition, is get an idea of the condition of a few different harbors here on Mt. Desert Island. My boat suffers zinc loss at markedly different rates depending on where it is tied up. I would like to get something that provides real information on the stray current differences from location to location. Do you think it would be possible to discern relative differences?

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[StormBay]

Yes, absolutely... The booklet that it comes with explains the process very well. You can always install a galvanic isolator on your boat if you are worried about stray current form either the marina or another boat.

 

[mitiempo]

If you have the AC ground (green wire) connected to the DC negative bus as required by ABYC for safety reasons a galvanic isolator is essential, if not a isolation transformer.

As far as a marina being "hot" it can vary depending which boats are there as they are the major cause.

 

[kellysails]

Yes, I have one. I log the readings monthly, or try to. I am almost at the point of having a clear coordination between the reading and the health of my anodes. Every boat is different so it takes a while to gain that understanding. I switched from zinc to aluminum anodes and the readings changed quite a bit. No way am I going to dive the hull in this water (PNW) so I find this tool quite handy.