Based on Kodak's J300 1999 document, if I had a darkroom in a building that relied on a septic/drainfield, domestic waste disposal system, I would want to contain all my chemicals (developer, stop, fixer, toners) in plastic bottles and dispose of them using local waste disposal centers. This leaves open the question of disposing rinse waters into septic/drainfield systems?
With respect to this, does anyone know of documentation that addresses disposing of rinse waters used for processing black and white photos into septic/drainfield systems? I'm thinking that, given the dilutions involved, this should have no appreciable effect. But, I'd like to find responsible sources of information that address this question.
In addition, versus using Kodak indicator stop bath, one can also use citric acid as a stop bath. So, my question extends to whether one can dispose of this used bath into septic/drainfield systems? Isn't citric acid a lit like orange juice in terms of disposal? Does anyone know of responsible sources that address this question as well?
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