Here are a few signs that your clarinet pads need to be replaced:
* The pads are no longer sealing properly. This can be tested by pressing down on the keys and checking to see if there is any air leaking out.
* The pads are starting to look worn-out or misshapen.
* The pads are making a clicking or popping noise when you play the clarinet.
* The clarinet is becoming more difficult to play.
If your clarinet pads are showing any of these signs, it is time to have them replaced. Trying to revive old pads can be a temporary fix, but it is not a permanent solution. Eventually, you will need to replace the pads anyway, so it is better to do it sooner rather than later.