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<p>[QUOTE=&quot;Kentucky, post: 1637833, member: 33176&quot;]Since Rick is giving up his patent idea, how about this - an inert plastic (polyester) cointube with a silver wafer at the bottom connected to a zinc or aluminum sacrificial anode on the outside of the tube so that all the corrosion would occur to the metal on the outside.&nbsp; I really think it would work, but the market for such a thing would be pretty small.[/QUOTE]</p><p><br /></p>

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