Jeanneau 45ds Cathodic circuit

[telboy]

:)Hi!
Since recent highlighting of seacock failure I have examined my Cathodic circuit. I have found that the seacocks in the aft cabin head are not linked to any circuit - is this OK? If not what options are available.

Telboy

[maby]

In my experience seacocks are not normally connected to the ground circuit. I think there could actually be a possibility that doing so could accelerate the de-zincification since they would then become bonded to the iron and steel components in the drive train and effectively become extra anodes.

[dolphinchaser]

There are two widely different opinions on bonding seacocks. One school of thought is to bond them all together and connect them to a zinc. The other is to isolate them (i.e., no bonding) and let them each ultimately fail individually....rather than have them all deteriorate more or less equally I suspect.

Personally, I have found the latter course to be superior. But it's very much a matter of personal choice.

Also, I recently replaced some seacocks on my 2004 vintage S.O. The ones the shipyard
recently provided are far better quality than the ones that failed. I suspect the originals might have been provided by the "low cost bidder". Sure do love the quality of the rest of the boat though. What a gem!

[telboy]

Thanks for the information guys.