Quoth Mark Brueggemann at 2008-04-29 22:55...
> I had one for a while but couldn't find a pump that would
> put up with the etchant (ammonium persulfate). Whatever the
> answer is, the agitator or impeller needs to be isolated
> from the drive source, and ideally it fits into a variety
> of tank sizes and shapes to accomodate one's varied applications.
You want either a magnetic drive pump (polypropylene would probably be a
suitable material) or a peristaltic pump (actually a positive
displacement pump - a set of lobes on a rotor squeeze a plastic tube to
push the fluid along.)
Hae a look on eBay - you'd be amazed at what's out there. Or probably
you wouldn't - I never cease to be amazed though, even after my wife
bought a grand piano through there...
Cheers
M
--
Matthew Smith
Smiffytech - Technology Consulting & Web Application Development
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