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Anodes

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Created by welsh > 9 months ago, 27 Jul 2022
welsh
NSW, 87 posts
27 Jul 2022 10:40PM
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Hello brains trust. so I've just had Maggie (cav 32) slipped and antifouled. She looks great out of the water btw. anyhow I asked about a Anode replacement and was advised that she didn't have one and probably never had ,
I was advised that it was not necessary and left it at that.
is this correct? Or do I need to do some remedial tinkering. cheers welsh

FabulousPhill
VIC, 320 posts
27 Jul 2022 11:30PM
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I have a 28 foot yacht made of fibreglass and it has an outboard motor. There is no need for anodes. The only metal under the waterline is the sink outlet and the old diesel raw water inlet.
It depends what your Cav32 is made from. Steel boats require anodes, and also if there is a steel prop. Dunno about bronze props. My previous steel yacht used 2 or 3 anodes.

Ramona
NSW, 7731 posts
28 Jul 2022 9:02AM
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I would suggest an anode on the propeller shaft as close as possible to the propeller. No more than that.

Bananabender
QLD, 1610 posts
28 Jul 2022 12:03PM
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Select to expand quote
FabulousPhill said..
I have a 28 foot yacht made of fibreglass and it has an outboard motor. There is no need for anodes. The only metal under the waterline is the sink outlet and the old diesel raw water inlet.
It depends what your Cav32 is made from. Steel boats require anodes, and also if there is a steel prop. Dunno about bronze props. My previous steel yacht used 2 or 3 anodes.


Just to clarify Phil ,just about all outboards have anodes somewhere.

crustysailor
VIC, 871 posts
28 Jul 2022 12:43PM
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Hi Welsh, we have a Cav32 in the family.
Definitely has 2 anodes on the hull, and one collar anode on the prop shaft.

FabulousPhill
VIC, 320 posts
28 Jul 2022 2:39PM
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Select to expand quote
Bananabender said..
Just to clarify Phil ,just about all outboards have anodes somewhere.


Sorry BB, I meant the yacht by itself. Since it is f/glass and the shaft has been sealed over, the only metal is the 2 inlet/outlets flanges - quite minor or made of bronze.
The OB is a different issue and has its own anode. Without a diesel engine, shaft and big propeller, my yacht is simpler.

welsh
NSW, 87 posts
28 Jul 2022 3:01PM
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Thanks for the replies and advice guys I'll investigate further

Ramona
NSW, 7731 posts
28 Jul 2022 6:02PM
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It's all too easy to have two many anodes. The only time you will have mixed metals in close proximity in this yacht is when the paint wears off the propeller.



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"Anodes" started by welsh