> > Presumably part of the reason for reclaiming the silver is > > to allow the depleted chemicals to be disposed of in a > > safe manner > Good point. Well yes, except you've have to get pretty pernickety and determine what level of silver is remaining in solution. What about the rest of the crud even after the silver has been removed ? I wouldn't drink it. Whatever the constitution of the liquid I wouldn't feel right pouring down the drain and would try to dispose of it via the council etc If it's to recover some metal then it's hardly worth the effort commercially - silver is cheap. And you can't guarantee that the metal deposited is going to be of usable purity, particularly as photographic solution is not EP solution. Chance is that the deposition will be quite poor and need refining. Options for that include treatment with conc sulphuric, hydrochloric or nitric acids to get the silver salt (assuming you can put up with all the other rubbish in the deposition also being salted), then taking that salt and re-electroplating it or fusing or smelting it If this doesn't work out for you perhaps try a jeweller or EP company to see if they can help you out -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu