Strange how nano silver use is .....http://www.audioenglish.org/dictionary/occluded.htm
Supposedly, if the silver is grouped about 20 molecules or bigger, it loses it’s efficacy. If there are clumps like that it precipitates out.
The goal is a suspension, wherein the electrical charge of the molecules holds it in suspension.
It’s easy to tell if there are molecules in suspension, using a laser pointer.