Susan, You are making CS but you are running the process too long. The black that you see is normal for a system that is not under constant agitation.
This is typical of what happens when people do not understand the process. To know what is going on you really should have a current meter in one of the cell leads and stop the process when the current reaches about 4 to 5 milliampers. This black stuff is silver and the correct name for it is "treeing". It happens in most electroplating systems and that is what making CS is. Do have a larer pointer to check for the tyndall effect? If not get one. I know some people say it is very simple but they have been doing it for years. So to cut the learning time get digital multimeter and learn how to measure current with it. Then you can control the process. "Ole Bob: -- The silver-list is a moderated forum for discussion of colloidal silver. To join or quit silver-list or silver-digest send an e-mail message to: [email protected] -or- [email protected] with the word subscribe or unsubscribe in the SUBJECT line. To post, address your message to: [email protected] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>

