In the files section are instructions for making etchant from muratic acid and hydrogen peroxide. Sounds like something interesting to try. As I understand it, you stick in the board and the copper goes into solution. You regenerate the solution by bubbling air through it. Ok, so where does all that copper go when you regenerate??? Thanks, mike
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Regenerating etchant??
2004-11-14 by gettingalongwouldbenice