On the pumps in my area the mute button is usually the second one from the bottom and it may be on either side. I don't care to watch them while I wait for my 40 gallon tank to fill but if I'm just topping off, I don't bother to mute, I wont be there long. I also grew up before skippable ads and watched Over-The-Air TV where you couldn't skip them. That's why there is still a format where an hour long show is actually 44-46 minute and a 30 minute show is around 22 minute runtimes on streaming services. Those commercial breaks were a speed contest to see if you could grab a snack, use the bathroom, or get a cup of coffee before the show came back on.