I made the colloidal silver 10 mins ago. How its look like?
Around 20ppm, 2.8mm wide wire, electrode voltage around 11-12v, electrode current between 10-12 ma (i will use the current regulator on next batch , i did this just for experiment), 30mins runtime at roomtemp water.
After 30 mins, i finished the process and put it on the heater added 2 drops of RA and heat it up to 84°c for couple of minutes. Here is the result.