Homebrew PCBs

On Mon, 11 Sep 2006 16:04:59 +0200, lcdpublishing  
<lcdpublishing@...> wrote:

> Hi guys,
> Went out to etch a board this morning only to find my tank empty -
> luckily I store it inside a bucket so all was well.  The Ferric
> Chloride siphoned out through the air hose inlet which passes through
> a hole in the side of the tank.  Aside from it completely disolving
> the brass fitting which connects to my compressor, nothing else bad
> happened.
> Just make sure to clamp the hose shut and to store your etching tank
> inside another vesel to capture the fluids should the main tank have
> problems.
> Chris


Indeed! I had a similar situation, twice ;-)


Does the hose leave the tank below or above the etchant level?


If you have a second container where it sits in, it is annoying, but  
imagine what it would be if there was no second container ;-)

For the air hose you could also try a no-return valve like sold for fish  
tanks to prevent exactly that problem of water flowing back out.


ST