Max, The easiest way to tell when the silver ions are starting to agglomerate is by the presence of a Tyndall Effect beam in the solution. That says that you have over cooked it. With a constant current system the system voltage will drop to a minimum and then start to increase as the ions combine the conductivity increase. In a constant voltage system when one plots the current during the brew you will find that the current increases linearly to a point and then bends off to the right which tells you that the conductivity is changing as the ions agglomerate.
My favorite configuration is a sheel anode and a rod cathode. I can wrap the cathode with a piece of white paper table napkin and it will hold all of the sludge that is generated during the brew. Hope this helps. "Ole Bob"
