Homebrew PCBs

On Tue, 15 Mar 2005 10:32:03 +0000, Lez <lez.briddon@...> wrote:

>
> I know nothing about this thread except, I have a pond pump with ceramic
> shaft magnet, the magnet is in a plastic jacket btw, it is a 12mm
> diameter magnet, about 22mm fan on the end, and produces a column of
> water 10mm in diameter at about 1.5 meters.
> was on sale at local fish pond place at 30ukp/60$
> surely thats more than enough flow for an etchant?


1.5meters is 0.15bar, while 1bar is more or less the lower, lower limit of  
reasonable spray etching pressure.
(and the 1.5 meters is usually at almost zero volume)

We were not talking about only pumping, we need pressure for spraying.

But thanks anyway, your pump shows there are etchant-compatible pumps out  
there, just not suited for spraying.

ST