I imagine face up to be a difficult position to keep water out of nose unless exhaling (like in a flip turn at pools end). Maybe a nose clip is the best solution. That’s what synchronized swimmers use, and they probably know best.
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This. You don't actively have to be exhaling through your nostrils to prevent water from going up your nose. All you have to do is exhale enough to create slight outward positive pressure. I do this all the time when playing around in the water when not diving and therefore not wearing a mask.I have done it but the only way i can explain it is my tiny, girly nostrils, which have more air/water surface tension than most man nostrils.
Second, is when my mask is off, i “almost exhale” as if i am putting slightest positive outward pressure on my nose air to counter inward pressure of water, but not enough pressure to exhale air.
Until someone invents comfy nostril one way vents like what’s on the bottom of my snorkel, that all I got.
Please post a photo of your nostrils from several angles so we can most efficiently diagnose your Nose-Close-Woes.Outbound, yes, I know what is that "all I have to do", but face-up underwater I've never succeeded in creating that slight outward pressure and keep water out with it, despite 8 months of practice and a couple of thousands of tries... As I mentioned in my previous post, air refuses to act like a plug in my nose when I'm face-up and I haven't yet found an answer why. I went to doctors, had a septum deviance correction and nasal polyps removal surgery and I still can't do it. That is why Im posting on this forum, maybe someone more experienced fella knows the answer. I know my first post is a mess, wish I could edit it lol.
Note that we could not keep the water from going down our nose and the back of our throat, creating havoc with the songs we were told to sing. Perhaps this will make you feel more human.During the pool work, we would be harassed. The instructors would swim up to us and pull a face mask off, or turn off our air. We would have to work with out buddy to solve our problems. If we surfaced, we'd be told to get out of the water and do twenty-five pushups. But we couldn't take off our gear. So we did the pushups with twin-tank aqua-lungs on our backs, weighing about 80 pounds.
At times, if this wasn't good enough for us, the whole class would be made to put their mask on underwater, so that it was full of water. We then had to get out of the water, lay down on our backs, and sings songs while doing a flutter kick.
I would have liked to have had a recording of those songs. We sang, but all that came out was the sound of drowning men as the water from our masks trickled down the back of our nose and into our throats. We sounded like a group-gargling experiment.
Copyright 2019, John C. Ratliff; from my unpublished memoir, Between Air and Water, the Memoir of an USAF Pararescueman."
Oh, come on. You are not doctors, so give this diver a break. Enough of this on-line diagnosis!Please post a photo of your nostrils from several angles so we can most efficiently diagnose your Nose-Close-Woes.