They are probably no good, metal parts, really low quality, low
volume, likely dead in a short time.
Sureflow or flowjet diaphragm water pumps work and have sufficient
power, one is better suited than the other (no metal bolts) but i
don't remember which check the archives.
ST
On Wed, Mar 19, 2008 at 9:22 PM, garydeal <garydeal@...> wrote:
> Hey, has anyone tried using automotive windshield-wiper fluid pumps to
> spray etchant? In particular, HCl/H2O2 etchant?
>
> Or maybe taken any apart to see if the fluid path is all-plastic? (no
> pesky metal to dissolve?)
>
> Alternatively, is there a suitable small pump available for under say,
> $40? I wouldn't need all that much volume/minute, and just enough
> pressure to get a nozzle to spray reasonably well.
>
> -Gary
>
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