At 03:15 PM 7/17/00 -0400, you wrote:
>Use a fish tank bubbler.
>
>Also, most of the magnetically-coupled water pumps (also for fish) have no
>exposed metal.
>
You can use an aquarium heater as well (sorry if this has already been
suggested). Peristaltic pumps work fine for pumping etchant.

Best regards,

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