One Fish

J

Johan.Nivvy

New member
I am sure most of you have seen this Dvd, some may even own it, but I have a quick question.

In the trailer at 42 seconds the diver descends.
Can someone please explain to me how he equalizes without using his hands to block his nose. Would it be that his mask does it? Or maybe he is using one of those swimming nose block things?

Also I still can't get the vid to 'embed' in here always comes as a link :(

Regards, Shifty.

*edit*
P.S. Brett de Charmoy's shot at 2:06 was an instant kill...right? What a feeling it must be making a shot like that :p ... one day ;)
 
C

Capespearo

Senior Member
You can equalise without pinching your nose by using the Frenzel technique.Kind of pushing your tongue against the roof of your pallet and flexing your neck muscle,hard to explain.Not many chaps can get it right.
 
X

x_yeti

New member
Sorry guys, but I have to disagree with you on this. It is physically impossible to equalise using frenzel without closing the nose. The frenzel is simply using the mouth and throat to push the air into the eustachian tubes instead of using the chest and abdomen.

When guys equalise without closing their nose they are doing hands-free equalisation. It is done by wiggling the jaw(controling the muscles) in order to open the eustachian tubes without pressure.

The Frenzel-Fattah is commonly referred to as the 'mouthfill'. This advanced technique is the same as the Frenzel except you fill your mouth with air, close off your epiglottis, keep it closed and use the air in your mouth to equalise. When divers 'lose' their mouthfill they accidentally open their epiglottis and the air in the mouth is sucked back into the lungs.
 
C

Capespearo

Senior Member
Hi X,

I thought that was the Frenzel,but you are spot on about the jaw muscles to open the ears.Is there a name for that technique ?

 
 
M

MOGGY

Senior Member
I dont know what I do, but i clear, without closing my nose.

i think I shift pressure around my throat.

When I did a SCUBA course, the instructor had a fit, so I swam wit my hand next to my nose to keep him happy.

If my ears won't clear in my funny way, then they do not clear at all
 
L

landshark

Senior Member
MOGGY wrote:
I dont know what I do, but i clear, without closing my nose.

i think I shift pressure around my throat.

When I did a SCUBA course, the instructor had a fit, so I swam wit my hand next to my nose to keep him happy.

If my ears won't clear in my funny way, then they do not clear at all
Click to expand...

Hey moggy,

Have you ever done a chamber dive at UCT?

While doing a 50m dive I remember a guy who joined us didn't use his nose to equalize.

So while the rest us were blowing profusely to keep track of the rapid decent it  seemed as if he was just sitting there swallowing...and when quizzed about it afterwards he said it's just the way that he always used to do it.
 
X

x_yeti

New member
Yeah most guys who do hands-free, do it naturally. I know of only a couple people who have 'learnt' how to do it and they are all instructors who spend almost every day in the water. I've tried and failed many a time :(
 
M

MOGGY

Senior Member
I have been in the Navy chamber.

I can't tell you whatI do, but it works for me.

When we first saw Jauques Cousteau, we started diving and it started with a rugby jersey, diving for sinkers.

We found a cylindre in a mate's dad's garage, wit a single stage twin hose regulator.

We put as much pressure in it from a welding oxygen cylindre, as the home made coupling would take and went diving in the knysna lagoon, at the heads.

My friend stuffed his eardrums up, because we did not know about eaqualising and nothing happend to me, because I could equalise naturally.

We dived deeper than 10m and knew nothing about the effects of oxygen at depth.

We were just lucky that no one had serious problems.
 
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