For years I've struggled with what to do about noisy pots. Until now the best solution I have come up with is to remove the knob and drip contact cleaner down the shaft. It only works a small percentage of the time. And I'm not sure it can even work on ganged pots at all. Plus it is quite messy since it is almost impossible to control the burst of contact cleaner that comes out.
Faced with the same problem once again an idea struck me while I was staring at the back side of one of the very common black square pots (single or ganged). The ones I'm referring to have four tiny screws holding them together from back to front.
SOLUTION: Remove one of the screws and squirt the contact cleaner into the hole. All four of the screws screw into a metal plate at the front of the pot. So the screw hole passes through every section of the pot (or multiple pots regardless of how many there are.
It's too early yet to tell how effective this is. I only just discovered it.
