At 1 Liter make size, the starting flow rate is near the lower limit of the pumps range, even with the very fine tubing I used. And, the chemistry was coming out in tiny drops rather than a steady flow. I cannot go any slower and backpressure in the tube did not seem to give any significant help.

At a "normal" size such as 10 L, the flow rate would be in the middle of the pump range even with larger tubing, and I could help with backpressure to give a steady stream. Of course that would use about 2500 g of AgNO3.

I have one wedge spectrogram. Being unsensitized, it is very low contrast.