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Zinc saver/recycler

My marina eats zincs fairly quickly (addressed in other threads). I get tired of throwing out partially used zincs.
I bought the SS (kitchen grade SS) strainer in the picture for $15. I plan to bend the handle to hook over my prop shaft, wire the zincs to the basket (so they don't fall out). I dive my own boat, so I can hang the basket on the shaft and remove it free diving in about 2 minutes. Of course, I will maintain the regular shaft zinc.
I'll also put a note on my ignition key, reminding me the basket is on the shaft!
I'm curious how much this will extend the life of the shaft zinc, and how the basket holds up. I assume others have thought of this but I don't see it mentioned anywhere.
Thoughts?
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Re: Zinc saver/recycler

I'd hazard a guess that you could also fairly easily (ha) buy a small stainless steel bowl and a propane torch, and slag down the pieces to cast new zincs directly. A bit more work, but if you did it once or twice a year...and of course, didn't inhale the zinc vapors...This is not rocket science.
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Re: Zinc saver/recycler

Are you trying to make an electrical connection between the basket, old zincs and the shaft, for galvanic protection? Those need to be tight, clean connections or they fill with all sorts of marine junk and stop working. If you are also going to keep your normal shaft zinc, there is such thing as having too much anode. Maybe just find a place to recycle your old bits, but I'm pretty sure we just dig the stuff out of the ground, so I'm not sure we should be sensitive to putting it back.
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Re: Zinc saver/recycler

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Originally Posted by Minnewaska View Post
Are you trying to make an electrical connection between the basket, old zincs and the shaft, for galvanic protection? Those need to be tight, clean connections or they fill with all sorts of marine junk and stop working. If you are also going to keep your normal shaft zinc, there is such thing as having too much anode.

I disagree, you CAN have too much protection. See Overprotected!

Maybe just find a place to recycle your old bits, but I'm pretty sure we just dig the stuff out of the ground, so I'm not sure we should be sensitive to putting it back.

Not a good argument. We pump oil out of the ground, that does not mean it is a good thing to pour it down the drain.
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Re: Zinc saver/recycler

MastUnd...... please read my post again. You actually agree with me on overprotection.

As for the point about returning zinc to the ground, I wasn't trying to be so literal. Unlike crude, I said I was not sure there is an environmental issue with burying old zincs. Is there?


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Re: Zinc saver/recycler

The zincs on our saildrive did not always last from one haulout to the next. I solved the problem by hanging a block of zinc from a stainless eye bolt on the transom...the eye bolt is bonded to the engine block via a stainless cable routed inside the boat. This works very well and saves diving under the vessel when it's time to go sailing...the zinc is simply unhooked. This should work with your leftover zincs, but as previously pointed out, you would need to ensure that the pieces are bonding with the holding basket.
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Re: Zinc saver/recycler

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Originally Posted by Minnewaska View Post
MastUnd...... please read my post again. You actually agree with me on overprotection.

Oops, sorry, you are right! I read it too fast.


As for the point about returning zinc to the ground, I wasn't trying to be so literal. Unlike crude, I said I was not sure there is an environmental issue with burying old zincs. Is there?

Honestly, I don't know. I do know that my marina requests to put old zincs in a special bucket, provided for this purpose, rather than throwing them in the trash. I suppose there is a reason for that but I don't really know.

But my main point was to say that the argument 'if it comes from the earth it is OK to put it back there' is not a good one.
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Re: Zinc saver/recycler

Collecting free scrap zinc is a great way to remake free zincs.


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Re: Zinc saver/recycler

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Collecting free scrap zinc is a great way to remake free zincs.
Jeezus, how cheap can you get?
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Re: Zinc saver/recycler

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Originally Posted by Fstbttms View Post
Jeezus, how cheap can you get?
For goodness sakes, make an attempt at adding something of value. Another poster suggested they could be undesirable to have buried in a landfill. Have anything to add?

Personally, I don't recycle zincs. However, the OP is clearly trying to and my suggestion was intended to offer a better way than the basket thing they are attempting. Remaking them could work, the basket won't.


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