How much is enough fixer?? We run about 15-20 gallons a month...we're a low-volume in-house lab....that's spent fixer out of deeptank line and a paper processor, as well as from an E6 machine. It literally took 5 years to even have enough to turn over....Kodak has an Environmental site:(posted 8132 days ago)http://www.kodak.com/US/en/corp/environment/kes/waste/index.jhtml
you can find all sorts of stuff on there about waste management, safety and silver recovery....my opinions only, once again..