Hi Stan,
Do you remember what color the bubbler stones were and how long it
took for them to dissolve?
Chris
--- In
Homebrew_PCBs@yahoogroups.com, "stan4312" <stanman@t...>
wrote:
> You might want to test the chunks for compatability with your
> etchant too, the HCl I'm using to brew CuCl just disintigrated
mine!
>
> Stan
>
> --- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
> <stefan_trethan@g...> wrote:
> > On Thu, 01 Sep 2005 23:27:29 +0200, lcdpublishing
> > <lcdpublishing@y...> wrote:
> >
> > > I picked up a fish tank pump and a container that should be
good
> for
> > > my first etching tank. When I picked up the fish tank pump, I
> also
> > > noticed they had these thing that looked like porous stone
that
> are
> > > used to spread out the bubbles. I bought one, but dropped it
on
> the
> > > floor before I had a chance to see if it worked.
> > > So, I am wondering if there is a good way to get bubbles to
> spread out
> > > across the bottom of my container?
> > > The fish tank thing only cost $1.00 or so, so I really don't
> mind
> > > buying another one to try, but I figure some of you creative
> folks
> > > here might have better method.
> > > Chris
> >
> >
> > I use a bubbler hose. It is kind of a hose made of foam rubber
> with holes
> > punched in one side. It makes many small bubbles. I tried
> different things
> > before, and always encountered uneven etching. I still see some
> unevenness
> > with this hose, but it is much better already. You might need to
> get the
> > lead(?) wire out of it and instead glue it to a plastic stick
> which you
> > sink.
> > I want to try a long bubbler stone one day.
> >
> > for larger tanks think and tinker shows a way to build a
> bubbler...
> >
> > ST