Assisted a friend who bought gallons of Colloidal Silver labeled R Pur Aloe in CA.
These gallons are 8 years old. Bought before the Y2K "event". R PUR Aloe did not respond to my request for information about this CS Gallon. The label says very little. Supposed to be 500 PPM Colloidal Silver. A good red laser pen shows a weak Tyndall effect. Tested the CS out of the gallon with a Hanna PWT and got an error reading. Know that the PWT meter works, has new batteries and is calibrated. I diluted the 500 PPM CS by crude volume calculations to yield 10 PPM. Then tested the DW dilution using the Hanna PWT meter. The dilution shows around 10 PPM. I only know a little about the EIS that I read about that my SilverPuppy makes for me. Does anyone know about this kind of product? Any suggestions for it's use? Thanks in advance for any help. Kurt
