|Feeler gauge with Mylar|
So, what exactly is a leaking pad? Well, it can seem a bit misleading, since it's not exactly the same as a tire leaking air. When checking for leaks, it's actually the pad seal that is being tested to make sure there are no leaks. In simpler terms, when the key cup closes and the pad covers the tone hole, are there any gaps between the pad and the edge of the hole? The answer should be no, because we all know what the result would be... You see, the air you put through the flute could escape or "leak" through if the pads are not sealing against the tone hole, and you would find it difficult to play the notes you are expecting to come out!
|Using the gauge around the pad to check for leaks|