3 year old snorkeling

[AfterDark]

@dcvf2, here is how regular snorkelers clear a snorkel. Also how uncounted millions around the world for the last 60 years have been taught and practice either or both methods. You are the 1st person I've encountered that does otherwise. I encourage you to continue; it seems to make you feel comfortable and that's good.

 

[dcvf2]

Hi "AfterDark »

@dcvf2, here is how regular snorkelers clear a snorkel.

That's not the question !

To avoid misunderstood, I think I should have defined the different ways to go snorkeling and explain to which "snorkelers" the rules I'm talking about are meant

The 3 first here below are not concerned by "the apneist's rule »
1) surface snorkeler that never dive...of course ;-)
2) snorkeler that dive to 10 feet to make a picture.
3) snorkeler that dive to 30 feet to make a kind of "touch and go".

4) snorkelers that dives below 30 feet or more and stays at least 1 minute or more at this depth ... (who do "these mistakes" because they have not taken appropriate courses) !

I just think of this last category ... whose behavior is almost that of a free diver

So, as long as you are a snorkeler 1 , 2 or 3 you do what you want.

‘’ it seems to make you feel comfortable and that's good.’’

You are the 1st person I've encountered that does otherwise.

That because if you never encountered pure apneists and discussed with them about the safety rules in freediving.
Please follow a free dive course…You'll understand then.

Great performant apneists (*) are not at all interested by what I try to transmit here, in the « snorkeling/freediving » section.

(*)I’m only a small basic apneist (**) just interested by the ‘’free diving skill’’ to fell comfortable to film in apnea sometimes at +/- (60 feet or 18m)
(**) 38 year in snorkeling …type 4 during the 10 last years
16 year in free diving ( AIDA 3* since 2015…I was young in this time …73)

I’m probably the first apneist how dare coming on a ‘’scuba forum’’ to explain the actual safety rules in apnea

Please go on this forum => FreeDiving, Scuba Diving, Spearfishing & Diving Travel | DeeperBlue.com and ask, if it is recommanded to hold your snorkel in mouth under the water

Regards

 

[AfterDark]

Hi "AfterDark »’



That because if you never encountered pure apneists and discussed with them about the safety rules in freediving.
Please follow a free dive course…You'll understand then.

Great performant apneists (*) are not at all interested by what I try to transmit here, in the « snorkeling/freediving » section.

(*)I’m only a small basic apneist (**) just interested by the ‘’free diving skill’’ to fell comfortable to film in apnea sometimes at +/- (60 feet or 18m)
(**) 38 year in snorkeling …type 4 during the 10 last years
16 year in free diving ( AIDA 3* since 2015…I was young in this time …73)

I’m probably the first apneist how dare coming on a ‘’scuba forum’’ to explain the actual safety rules in apnea

Please go on this forum => FreeDiving, Scuba Diving, Spearfishing & Diving Travel | DeeperBlue.com and ask, if it is recommanded to hold your snorkel in mouth under the water

Regards

Well I suppose I'll never be an apneist. I don't get why anyone wants to hold their breath underwater when they can use scuba and stay awhile. Between the ages of 10 and 15 I couldn't wait to lose the snorkel and be able to breathe underwater. Snorkeling for me is a means to an end. I snorkel to get ambient light underwater pictures. Around here 2FSW is the best depth for that, so a snorkel is the right tool.
I did some breath holding spearfishing in the distant past but never was really good at diving deep holding my breath.

Over the years I've developed a habit of sticking my tongue in the mouthpiece of my snorkel just before I dive and keeping it there until clearing the water from it on the surface. I think that may help prevent the scenario you are posting about.

I thank you for the information learning is always good. I'll admit to being ignorant of this aspect of free diving.

 

[divad]

On vacation I got my just turned 3 year old to repeatedly duck her head under the water with a mask and snorkel for a few seconds. The next day I couldn’t keep her above water - it was so cute to hear her sing Baby Shark and Daddy Finger through her snorkel!

Please post video.

 

[John C. Ratliff]

I just this summer found a snorkel I didn't want to keep in my mouth--the first, ever, since at least 1957. This was a Aqualung "dry" snorkel, and at 23 feet depth in a fresh water river, I felt it pulling a vacuum on my throat, and spit it out. That's because the valve had sealed, and the tube had become a closed system.

I have been snorkeling in all sorts of conditions, and have not needed to remove my snorkel from my mouth at all. In my prime, I could fairly easily hit at least 20 meters (about 60+ feet). I would do this with an open "J" snorkel, and breathe when I surfaced. Surfacing I would simply do a displacement clearing of the snorkel and stay with my head underwater. Please note that this was the accepted version, especially while spearfishing as you could continuously keep an eye on the underwater scene, which served a safety purpose.

@dcvf2, Now, about this "new" sport of "apnea"; it isn't. What is happening is that people are "selling" a new training program, trying to get people "certified" in "apnea." Well, good luck. Yes, people do need to understand the physiology of both shallow water blackout, and decompression sickness from free diving (documented in U.S. Navy training tanks decades ago). Have you read E.R. Cross' publication titled "Taravana," published by Skin Diver Magazine in 1962? (I've uploaded my typeout of his article below, as it is mostly out-of-print.) Here is Robert Wong's follow-up article on the subject, TARAVANA REVISITED DECOMPRESSION ILLNESS AFTER BREATH-HOLD DIVING. So what you are telling us to do we have already mostly done, decades ago. Here is what Dr. Wong stated in his article:

It is of interest that the divers hyperventilated before diving. Hyperventilation lowers PaCO2 but, although this prolongs breath-hold time, the diver risks loss of consciousness from hypoxia due to a low PaO2 before PaCO2 rises enough to provide the stimulus for another breath. Alveolar PCO2 rises as a BH dive proceeds and normally hypercapnia provides the stimulus for surfacing. With hyperventilation, PCO2 can be lowered so much that a dangerously low level of PO2 (around 25–30 mm Hg), which can cause unconsciousness which may lead to drown- ing, can be reached before the PCO2 reaches a level (50 mm Hg) that stimulates breathing.4 Although oxygen con- centration falls during descent this provides no hypoxic stimulation for breathing because the PO2 remains relatively high at depth because of the increased pressure. Alveolar PO2 increases with depth as the alveolar gas is compressed. During ascent, alveolar PO2 decreases, partly due to oxygen consumption, but mainly due to decreasing pressure. There is a danger of hypoxia, just before reaching the surface, causing unconsciousness. This has been called “shallow water blackout” although it is more accurately hypoxia of ascent. When the alveolar PO2 falls below the mixed venous PO2, there is a transfer of oxygen from mixed venous blood to alveolar gas which raises the arterial PO2. Although this is a transient effect, it may be an important factor in preventing loss of consciousness in the final stages of ascent. Yet this did not appear to occur often with the Tuamotu divers, perhaps because they descend without effort and do not swim up but are pulled up. Nevertheless 5 out of 235 divers went unconscious or died in the water, which is a 2% incidence, during a 6 hour working day.

SeaRat