Archived posting to the Leica Users Group, 2004/08/17
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]This darkroom chemistry and septic tank comes up all the time. It is a classic case of dosage. If you are running a commercial lab on your domestic septic system then you will have problems. If you are running a couple of hundred rolls of film a year then there should be no problems with a normal system in use by a normal family. If you have concerns about silver then either set up a home collection system based on cartridges or steel wool. Your other option is to get to know your local lab and get permission to dump your used fix in their silver recovery rig. The appropriate analogy is that when there were just bears in the woods the rivers ran pretty clean. When you have 100 million people upstream of New Orleans I wouldn't swim in the Mississippi. Don dorysrus@mindspring.com -----Original Message----- From: lug-bounces+dorysrus=mindspring.com@leica-users.org [mailto:lug-bounces+dorysrus=mindspring.com@leica-users.org] On Behalf Of Jesse Hellman Sent: Tuesday, August 17, 2004 6:17 AM To: Leica Users Group Subject: Re: [Leica] Darkroom I read somewhere, Camera and Darkroom (an expert on chemistry writes a column) I think, that the silver present in the fixer is not good for a septic tank. But is this true? Richard Comen wrote: > > I have been on septic systems for 70 years, allways with B&W darkrooms > and no trouble yet. > > Richard > Mendocino Ca > _______________________________________________ Leica Users Group. See http://leica-users.org/mailman/listinfo/lug for more information