Thanks Tony. I really do use UtopiaSilver and have their older colloidal maker (the one with the 9V battery). I got it along with the Hanna Instruments PPM tester.
When I feel that I need a real boost for a day, I use the NutraSilver. I can make a cup of the 10 ppm silver with just 30 drops of NutraSilver. That's more convenient than trying to make my own that fast or that frequent in a day.
I need to find out if Utopia's new maker uses a battery or the wall plug. As much as I make colloidal silver, I feel that the strength of the battery is not enough after a while.