I'm using 100k potentiometers if that matters.
If there is a difference between the two 4051 chips,
Use 10 in parallel.
Before I purchase a set of 10ks, is there any way I can get the 100ks to work?
Instead of having to read each signal individually, we can send a number, in binary, to the multiplexer over 3 digital pins (3 bit binary number, depending on the high/low state of these three pins), then, the multiplexer will redirect the signals it gets from the potentiometer we want to the common pin, where we can finally read it.
YES! Got it working. Thank you all for helping out. I appreciate it greatly. The most important problem that I didn't even realize was that there was a row of pins on my breadboard that was completely dead. After I moved the 4051, it started working!