Homebrew PCBs

On Tue, 07 Dec 2004 20:48:40 -0000, Radra <infositeus@...> wrote:

>
> Think & Tinker has some suggestions regarding bubblers at
> http://www.thinktink.com/stack/volumes/voliii/equipment/bubltank/bublt
> ank.htm .
> Lyman


thanks.
and here is was wondering how i could produce very small holes, for very  
small bubbles.
It seems larger is OK, though small would be better for regeneration.
I will try the hose-and-hot-needle approach and see how many holes that  
pump can drive.

ST