I would not want the stuff to be around for more than a week. I am working in borrowed lab space, and I don't want to take up too much space. That being said I am only making boards that are 2x2, and it might take a while to accrue significant(< .5 liter ) amounts of the leftover etchant. Do you have plans to replenish the used FeCL?
--- In Homebrew_PCBs@yahoogroups.com, DJ Delorie <dj@...> wrote:
>
>
> "Jachin" <jachin.s@...> writes:
> > storing the used etchant for long periods is not feasible.
>
> How long is "long periods" ? Mine's been sitting on my workbench for
> two years now, and I have some used FeCl that I got years before that.
>