Boy it sure is a good thread and it tells me how rusty with this type of stuff I am. I used to develop B/W film at home but then I stopped for about 6 years. So now in general all of my chemicals have gone kaput. C-41 process seemed to work fine for me though. Donald-Good point about the septic system. However, please remember that water treatment can handle some of contaminents you or I am putting into the system. BUT we are not the only one polluting the system. Imagine a neighborhood pouring -whatever- down the drain occuring across the country. Obviously, it's probably better for all to act with more caution. Bsteph