Soda-Pop Deco Analogy

[DeepBound]

You know how if you shake your Soda-Pop before opening it, there are twice as many bubbles? Does that happen in the human body with nitrogen? Is that why you should relax on your deco stop, so you aren't bouncing all over shaking up the nitrogen out of solution forming bubbles?

 

[Meng_Tze]

I am going to sit back a bit to see ....

 

[Web Monkey]

Google is your friend.

http://www.scubaboard.com/forums/ask-dr-decompression/167837-post-dive-exertion-soft-drinks.html

Terry

 

[texdiveguy]

I have never shaken a bottle of pop...is that what happens?

 

[DeepBound]

I have never shaken a bottle of pop...is that what happens?

Try it. It works with cans too. But make sure you shake it really hard for at least 30 seconds before opening it, so you can see the full effect.

 

[Hemlon]

Try it. It works with cans too. But make sure you shake it really hard for at least 30 seconds before opening it, so you can see the full effect.

Better yet, try it while sitting in a confined space such as your vehicle.

 

[Robert Thompson]

You know how if you shake your Soda-Pop before opening it, there are twice as many bubbles? Does that happen in the human body with nitrogen? Is that why you should relax on your deco stop, so you aren't bouncing all over shaking up the nitrogen out of solution forming bubbles?

The big concern in deco is that you maintain a constant depth during your stops, that your ascents are slow, and that your not straining your muscles. The soda pop analogy is a great example of dissolved gas in a liquid but its not that your shaking the gas as much as your reducing the pressure from the bottle to quickly. If your bouncing up and down during decompression your constantly changing the external pressure that is keeping the dissolved gases in solution. You need a certain amount of reduced external pressure to drive out absorbed gas, but to much reduction in external pressure will cause the gas to come out of solution. If you are running your decompression to close to that line, and not maintaining your depth properly you can very easily win the DCS award. Also remember the line between bent and not bent is ever changing one day to the next, so please be conservative. Padding your deco is always more tolerable than explaining your profile to the Dive Doc.

 

[BMCG]

passes the mentos...

http://www.youtube.com/watch?v=znoSaHwbHYg