I also have been given qiute a lot of old fogged over the past few years. I have been considering the feasibility of placing sheets in a couple paper washers filled with fixer, and then extracting the silver in an electrolytic recovery unit. I have finally found a source of silver estimating paper that measures in the range of 1 to 10 grams per liter, but have not worked out other things like how long to soak the paper to extract as much silver as is practical with once-in-a-while agitation and how long I would need to run my recovery unit to remove as much silver as possible. And whether I can end up with enough silver to make this project worthwhile with the price of silver what it is now, or will be when I am ready to cash in. Not to mention the cost of the sodium thiosulfate, which I think I can acquire pretty inexpensively in a large quantity from a local swimming pool supply shop---they use it to deplete chlorine from pool water before dumping to waste. What is a trickle tank? Thanks for any thoughts people might be able to share about this. ---Harry ----- Original Message ----- From: Robert Hall <robert.g.hall@xxxxxxxxx> To: pure-silver@xxxxxxxxxxxxx Sent: Wed, 14 Mar 2012 15:07:45 -0000 (UTC) Subject: [pure-silver] Silver recovery Hi again, I was given a huge amount of paper recently that was fogged from old age, years ago. I would like to recover some of the silver from it and wondered what experience we have with trickle tanks? Can I make my own, or would I do better finding a commercial product? Where might I source such a beast? Thank you again, Robert Hall www.RobertHall.com www.RobertHall.com/workshops www.facebook.com/robert.g.hall ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.