The developer and fix are basically black and white developer and fix.
The bleach is a strong acid, sulfuric in the case of the pro bleach, but no more dangerous than any other strong acid and not that hard to handle safely.
I think Ron posted something at one time about working out a formula for a bleach that would work. I'd think it could be done but don't know the effort involved or if anyone capable of it would care to with the paper supply gone.
Last edited by Roger Cole; 09-14-2013 at 02:23 PM. Click to view previous post history.