CS>Question - CS Dosages?

[Wetterauer, Letitia [MWPS]]

Can people on this list give me dosages that they are using daily and PPM? I am 
trying to figure out what I should use. 
 
At this site, the author gives instructions for a very cheap CS generator: 
http://cat007.com/silver.htm He claims it makes a 5ppm solution. He uses a fish 
tank aerator and a 6 volt converter. I have used these converters to etch 
aluminum printmaking plates. What do people think of his ideas?
 
Thanks.
Tish