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I just picked up some of the multi point pencils from Target. $1 for 10. This is the pencil with the little plastic cartridges in it. When the lead gets used up you pull out that cartridge and stick it in the top of the pencil. That pushes the next cartridge out to be used. We'll see how they work. Haven't had them in the water yet. Nothing to lose but a dollar.
Ron
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