Quote Originally Posted by winger View Post
When you or another in your house cleans the toilets, do they use a cleaning product and flush it into the septic system? 'Cause all that's going down the drain in this is diluted bleach. The chemical residue left on the neg by the original processing is an extremely small amount.
We tend to be careful about it and use a non-chlorine bleach for laundry, but yes small amounts of bleach do go into the septic from normal cleaning. I was not worried about that and was thinking of the color development residue, since I don't know what it is or how much might wash off in this process. I was thinking I'd try the process at a friend's house attached to the sewer first, to see how much goop comes off... sounds like it might not be enough to worry about....