On 3/2/2010 3:19 PM, John Graves wrote:
I am considering developing my own B&W film. My film cameras are
beckoning. Before I do this, I would like to understand how to dispose
of the required chemicals. I would be using something like Ethol UFG
on TMax or equivalents. It looks like fixer with a simple treatment
(desilvering) is dumpable, but what about the developer and stopbath?
I am on a septic system and don't want to spoil a good system.
Any suggestions either in disposal or alternative products is welcome.
John / WA1JG
Silver Nitrate is a antiseptic, a bactericide. You don't want it in a
septic system as it will have that effect on the flora that breaks down
waste. There's a lot of silver in the fixer when it's exhausted,
something like 90% of the amount originally present, you can recover
that.or you can build your own which considering the price of silver
might be worth while. You might want to look into one of these.
http://www.porters.com/catalogsearch/result/?q=Silver+Magnet
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