[AlexF]

I can equalize my ears oppening the tubes with the muscles but only outside of the water. In the water this only works for me for one ear and if there isn't any pressure buildup. This technique works great for airplanes, high elevators, cars and so on, but still haven't found a good way to make it work while diving.

What I do is do a swallowing technique, even if I don't swallow any saliva, I do the same muscle movements and it works perfectly up to 37m. After that I have to use frenzel. If I allow too much pressure to build inside my tubes, the swallowing technique won't work fand I have to go to Frenzel.

I have no clue when I started doing this technique, but I believe it was when I was around 11 or 12. By 15, when I was scuba certified I could already do it. I haven't heard of anyone doing the same equalizing technique.