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Sirius Diving
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We are a TDI/SDI 5 Star Advanced Diver and Instructor Training facility specializing in all levels of Technical, Trimix, Cave, CCR, Sidemount and Wreck diving.
We are a TDI/SDI 5 Star Advanced Diver and Instructor Training facility specializing in all levels of Technical, Trimix, Cave, CCR, Sidemount and Wreck diving.

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Cave action at Planet Scuba Mexico and Sirius Diving This week again. Kris is guiding Nick through some beautiful cave systems in sidemount, while Christian is taking his Intro to Cave course with Markus and Alex is observing. Issac left this morning early on a cavern tour to catch the best of the sun rays in cenote el Eden.
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2015-01-21
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Yesterday we went for a cave dive with Erik Brown from Team Blue Immersion in Dahab. Kris took us to the waterfall line in TajMa-Ha. It's amazing how much unexplored cave there still is in this well known area!
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2015-01-13
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A short clip of the video Marielle made for the Bootshow in Dusseldorf this year.

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This morning we left with a plan for shooting a cave video in the cave 'El Toh'. We came back happy this afternoon with lots of awesome footage. Now let's edit!

Planet Scuba status update Facebook:
Markus, Kris, Marielle and Katy are off to some more full cave video shooting for Planet Scuba Mexico, Sirius Diving and Hollis today while other tours are out cenotes diving already! — at Planet Scuba Mexico
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This is the promotion video I made for the 'Our World Under Water' dive show in Chicago last year. It shows all the different technical and cave dive training we offer.

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Proper breathing: Inhale and immediately exhale then pause for 3 to 5 seconds before the next inhalation. Also known as Eupneic breathing or the natural breathing cycle that you use while resting, reading, watching tv, or sleeping. People should breathe what they need and not try to conserve gas by using CO2 retentive techniques.

Most people that complain about headaches after dives are breathing incorrectly.

Most people actually hold their breath upon inhaling due to buoyancy issues being improper weighting or trim.

These issues are actually taught in the first OW courses they do, as students are taught during the "Fin Pivot" that lungs empty is negative, lungs full is positive and therefore by default lungs half full is neutral.

Try walking with your lungs half full and see what happens to your breathing rate.. It usually increases and becomes shallow and rapid due to the retained CO2.

Improper propulsion techniques are also a reason for extra consumption.

When you swim across a pool and want to go fast you would use a freestyle stroke and thus a flutter kick.
This is a kick and a kick and a kick without glide and therefore causes more exertion thus increasing the breathing rate due to the need for O2 to feed the muscles and as this O2 is consumed there is an increase in CO2 production.

If you were to swim across the pool as slow as you could you would use a breast stroke thus a frog kick.. this is a kick and glide, kick and glide, lessening the demand for gas due to the relaxed nature of the kick.

I have to re-train most divers including instructors to breathe properly in most courses I teach due to the reasons mentioned above.

The first and most important reason for breathing is to get rid of CO2 not to conserve gas.

The only proper way to conserve gas is:
First and most important: Proper breathing technique.
Second: In-water comfort, this is achieved through practice and proper training.
Third: Better buoyancy control through proper weighting and trim. Fourth: Better trim thus increasing streamlining to decrease drag and increase glide.
Lastly: Proper streamlining of equipment, NO danglies.

Simply put when you have to breathe. Breathe!

The amount of gas you have at the end of a dive doesn't make you a better diver than anyone else, your technique however does.
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