Homebrew PCBs

Don't get it anywhere near a septic tank. Copper is really good at 
killing bacteria. Mixing it with cement or dry-mix concrete will 
neutralize the acid and tie the copper up in a solid block which can be 
disposed of in the bin. If you keep cement in a well sealed container it 
will last a long time so one bag will last you for ages.

Les

On 19/06/2016 20:46, n0tt1@... [Homebrew_PCBs] wrote:
> \ufeff
>
> I'd like to do that as well with the Muratic...question is what
> does one DO with the spent etch?  Might not be so good
> in a septic tank IF that is permitted to pour the stuff down
> the drain.  Just asking...
> Charlie