Thanks.. I guess that explains it! I've only done a few boards and the etchant is certainly not dark.
So, I just have to keep adding a little hydrogen peroxide to reactivate each time I etch until I've etched enough boards to turn it dark, and then just bubbling will reactivate it?
--- In Homebrew_PCBs@yahoogroups.com, DJ Delorie <dj@...> wrote:
>
>
> If you can see the pcb AT ALL in the solution, you don't have enough
> etchant in it yet. Mine is so dark, it's basically black, and I can
> only see the pcb if it's within 0.3 inches of the sides. I check the
> color by taking a few drops out and checking that.
>