Homebrew_PCBs

"poofjunior" <seeifyoucanmeetme@...> writes:

> Has anyone had any long-term success with this process? How long does
> it take to aerate? Is there any excess waste that needs to be dumped
> eventually?

I put together my CuCl etchant around March 2008, so four years ago.
I'm still using it. I run the air pump only when I'm actively using it
(i.e. from "plug in the heater" to "done"), and it's been jade green the
whole time. I occasionally test the HCl levels and add acid, and/or let
some of the water evaporate, but otherwise I just use it to etch.

> Are there any circuits I can create to duplicate an electrolysis
> setup?

There's no electricity involved in my tank at all, aside from the heater
and air pump.