Archived posting to the Leica Users Group, 2001/07/03
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Photo Techniques did an article on that subject a year or so ago. I think their conclusion was that at the dilution of the chemicals combined with all the other water from the household it wouldn't be a hazard. That was good enough for me. Mike D - ----- Original Message ----- From: "Mark Pope" <mark.teampope@ntlworld.com> To: "Leica User Group" <leica-users@mejac.palo-alto.ca.us> Sent: Tuesday, July 03, 2001 4:47 PM Subject: [Leica] OT - disposal of monochrome chemicals in septic tanks > I've just returned from a two week holiday in south-west France, taking > loads of pictures with my Leica M and MF outfit. In order to save time, I > took some chemicals with me to develop the films as I went along. > The property that we were staying has a septic tank. The only chemicals > that I put down the sink was very diluted used developer (ID11, which > contains sodium sulphite, metol and hydroquinone). I brought the stop and > fixer back with me. > > I wonder whether anyone has any experience or knowledge about septic tanks > and whether it is actually OK to dispose of exhausted developer, stop and > fix (Ammonium thiosulphate) in them. > > Any advice would be greatly appreciated. > > > Thanks > > > Mark Pope > Swindon, Wilts > UK > > http://www.monomagic.co.uk > > >