How long for 1 qt of 10ppm using 1mA constant current?

How long should it typically take to achieve 10 ppm of silver (measured as roughly an 8.5 to 9.0 uS gain over the initial distilled water uS reading) for a full 1 quart batch while using a constant current generator rated at only 1 mA of current output, when starting with distilled water and .9999 silver rods only? Assume a starting point with distilled water which measures about 1.5 uS (below 2 uS) on a Hanna PWT.

Will the process take perhaps 10-12 hours, or perhaps even more? Tweet