Homebrew PCBs

I have heard of people reviving FeCl by adding sulfuric acid but I'm a
bit skeptical that it works that well.  When it stops etching, dispose
of it (responsibily) and mix a new batch.

Phil

--- In Homebrew_PCBs@yahoogroups.com, "microsoftwarecontrol"
<microsoftwarecontrol@y...> wrote:
> I bought solid FeCl3, in small ball shape.
> I add water to get pcb etching solution.
> 
> I found used FeCl3 solution will become 
> two parts: green, transparent liquid and 
> yellow solid at bottom.
> 
> As I understand, green solution should 
> contain Cu ion from pcb. 
> 
> Could I pour out green liquid and add new 
> tap water to renew etching liquid?
> 
> 
> 
> 
> 
> [Non-text portions of this message have been removed]