Homebrew PCBs

I tried to use CuCl over a period of 4 months.  I was never able to
regenerate it using a bubbler - even left it running for a week once.
  I added more acid but no regen.  However, adding H2O2 made a huge
difference.  My bubbles were fairly small so I think I was getting O2
into it.   I suspect there is more to it than just pumping oxygen into
the solution.

--- In Homebrew_PCBs@yahoogroups.com, "stan4312" <stanman@t...> wrote:
> I'm attempting to bootstrap my first batch of CuCl as I type, so 
> this page is fresh off my bookmarks: 
> http://pacificsun.ca/~robert/pcb/cucl.htm Pretty good  
> page on CuCl. Lots of precision chemistry. 
>  
> I thought he also had the following seat-of-the-pants advice: if it 
> hasn't regenerated overnight, add more acid, but glancing back, I 
> see it must have been from somewhere else.   
>   
> Stan 
>  
> --- In Homebrew_PCBs@yahoogroups.com, "johnwhitneyfiat"  
> <johnwhitneyfiat@y...> wrote:  
> > I have been off the group for a while and I'm sure this was  
> covered.    
> > In the direction for making etchant from Hydrogen Peroxide and  
> Muratic   
> > Acid, it says that you can regenerate with a bubbler.  How long  
> does   
> > this take?  I know it will depend on the amount and the area that  
> was   
> > etched, but is there a rule of thumb to make it work. I do have to  
> day   
> > that I make a small bathch and it worked great on a sample board.  
> >   
> > John Whitney  
> > Wis X 1/9