Offshoreonly.com - Mercathode System

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johnkot

05-27-2004 12:27 PM

Mercathode System

My 86 Formula 357 has a Mercathode system. Can anyone tell me what this does and how can it be checked for function? Is it checked with the boat in or out of the water?When I bought the boat I found it to be disconnected. I have reconnected it but want to ensure that it does not do more harm then good regarding any galvanic action/electrolysis or what not. Does it draw much from the battery?

Thank you

JK

stian

05-27-2009 06:04 AM

You should use a reference electrode to measure the potential between the water and the protected system. The procedure is outlined in pages 7a-18 and out in this pdf
http://www.boatfix.com/merc/Servmanl/11/11a7r5x.pdf

Hope this helps
Stian

I just saw that this was a very old post, but I'll let it be so someone searching can find it.

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