Keys Wreck Photo Report (Spiegel/Vandenberg)

[Nemrod]

Great photos, what were those being shot with? N

 

[Deefstes]

Wonderful shots there! Thanks for sharing.

You can't inhale the air obviously but you can pop your reg out to talk to people.

I'm very curious now as to the reasoning behind this. Why exactly can't you inhale the air in the air pockets?

From what I understand we exhale a good percentage of the oxygen that we inhale. On the surface, if I remember correctly, the gas mix we exhale contains something like 16% O₂ which is ample for breathing in again (making CPR possible).

I can imagine that the dynamics change when the air is breathed under higher ambient pressure but the way I figure the percentage of O₂ would actually be higher than 16% (but obviously still lower than 21%) in exhaled air at depth. My reasoning could be wrong though as I'm sure there are lots of factors involved that I might not be thinking of (and that I don't even know of).

This is more of a hypothetical question really and I'm just very curious as to the physics behind this. I can agree though that it's not wise to breath mixes under water of which you don't know the composition.

*EDIT* OK never mind. I started a new thread on that, don't want to hijack this one. Rather answer this question in the new thread.

 

[alcina]

Great dive log!! Thanks

 

[ZoCrowes255]

Thanks for all the kind words everyone I'm glad you all liked the photos.

Great photos, what were those being shot with? N

Olympus SP-350 with a Sea & Sea wide angle lens and Sealife DC350 Digital Strobe. There are a few shots with my girlfriends Sealife DC800 as well.

Wonderful shots there! Thanks for sharing.

I'm very curious now as to the reasoning behind this. Why exactly can't you inhale the air in the air pockets?

From what I understand we exhale a good percentage of the oxygen that we inhale. On the surface, if I remember correctly, the gas mix we exhale contains something like 16% O₂ which is ample for breathing in again (making CPR possible).

I can imagine that the dynamics change when the air is breathed under higher ambient pressure but the way I figure the percentage of O₂ would actually be higher than 16% (but obviously still lower than 21%) in exhaled air at depth. My reasoning could be wrong though as I'm sure there are lots of factors involved that I might not be thinking of (and that I don't even know of).

This is more of a hypothetical question really and I'm just very curious as to the physics behind this. I can agree though that it's not wise to breath mixes under water of which you don't know the composition.

*EDIT* OK never mind. I started a new thread on that, don't want to hijack this one. Rather answer this question in the new thread.

It's not so much the low percentage of oxygen that concerns me about breathing the air in such a place but the high percentage of CO2. You have to take into account the fact that a lot of divers have probably popped there heads up in there and as such there's a concentration of CO2. In my opinion it's probably better to be safe than sorry.

 

[Wildbill]

Really great pics.......... Thanks for sharing them. I'm only about a 6 hour drive from these dives I guess I need to get my act together and get down there to see them in person.

 

[Deefstes]

It's not so much the low percentage of oxygen that concerns me about breathing the air in such a place but the high percentage of CO2. You have to take into account the fact that a lot of divers have probably popped there heads up in there and as such there's a concentration of CO2. In my opinion it's probably better to be safe than sorry.

Makes perfect sense, thanks.

 

[divengolf]

I'm only about a 6 hour drive from these dives I guess I need to get my act together and get down there to see them in person.

I dove the Vandy 5 times over three days and it's a neat dive. However be careful which dive op you choose. I was there last Saturday and saw some small boats doing some rather dangerous things IMHO. There was a decent current, 4-5' seas, and a storm coming in with lightening on the horizon, so conditions were no ideal. In one case, a small boat with only two divers was unable to retrieve its divers when they came up on the wrong ball. The boat only had a captain aboard, so there was no one to put in the water to assist the divers in distress. Fortunately another properly equipped boat was nearby and put two DMs in the water to rescue the stranded divers and run lines back to the small boat. The boat providing the rescue was from Dive Key West.

The only two ops that I'd consider for my diving are Dive Key West and Southpoint Divers. Both run classly, safe operations. Some small ops have jumped into the business due to the popularity of the Vandy. Beware. It's YOUR life.

What I saw last Saturday chills me to the bone. It easily could have resulted in a tragedy. I have reported the incident to the local Coast Guard for follow-up.

At the time, I was onboard the MV Spree, a liveaboard operating out of Key West, so I had no involvement with any of this other than as a witness from the sundeck of the Spree. And I have no relationship with either DKW or SP other than as a customer.

BTW: Great photos of the Vandy.

 

[PENNJ003]

Excellent Pictures. Thanks for sharing!

 

[NJ to FLA]

Those are some really cool pictures! I enjoyed them.

 

[sporket]

I enjoyed them as well. Thanks for the wonderful shots.