Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

I've seen several recommendations on throwing the FC in some cement
mix, etc. to make a "moon rock" which you could throw in the trash
(sorry if that's already in this thread). Seems easy enough and the
cement powder was only 2 or 3 bucks for a giant bag at the hardware
store last time I bought any.

FWIW- I had to resort to re-using my three "almost spent" bottles of
FC on my last etch after calculating the amount of my new Sodium
Persulfate crystals that I would need in order to fill my recently
built etch tank.

Using the tank (with heater and pump), the old FC acted better and
faster than what I was accustomed to under manual agitation and
exterior warm water heat. It was even cut with a bit of H2O to fill
the tank. I probably could've done without the airborne brown mist of
FC that the bubblers put off, but I still haven't added my hold-downs
for them or a top for the tank. Should give someone on my level way
more time before disposal is required (and save some cash).

-George