Duh. You were right. I put in those extra drops and felt
that nothing happened, but when I came back to the office this morning and was getting ready to water my plants, I noticed that the last batch had turned the exact shade of yellow it should have. Go figure. Thanks Bill. It is that constant current thing (mA) which is more critical. The volts will just vary according to the time and silver in solution
. The constant current idea is how you worked out the time table for ppm with all the other variables, like Anode surface size. Funny how sensitive the formula is. For example after you told me I could add more drops of the electrolyte and reducer to see if that had an effect. This next batch I added the 20 drops (for 20ppm) like before and noted the voltage display and the Ammeter display and then just added one more drop. I watched the voltage now drop a few points! Wow. You really did dial in this formula down tight.
Fascinating stuff this Electro-Chemistry. Now I regret never taking those classes in school and college!
Thanks again for your guidance and help. I like being taught to fish. Unfortunately, as you can most likely tell, it takes me much longer to "learn" what I've been taught.