I have been experimenting with a ton of configurations. Plates, current, electrolyte, and water volume. I just can't seem to slow or stop the formation of all that brown stuff. I suspect it's rust, or perhaps a byproduct from the electrolysis process. In all of my configurations, the test solutions always come up to being a muddy brown, yet I see videos all over the web demonstrating a long run time and no brown. What am I doing wrong?