I wonder tho' in such a situation where every second counts.... would you be better trying to grab your 'spare air' on your belt and applying it, or grabbing your knife and cutting away?
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Spare air - emergency air anyone?
- Thread startermisterlizard
- Start date
Thread Status: Hello
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I wonder tho' in such a situation where every second counts.... would you be better trying to grab your 'spare air' on your belt and applying it, or grabbing your knife and cutting away?
I'd say if it was guaranteed to work 5 or 10 minutes of air would be by far the better option to go for.
If it was less than £100 I would probably get one, especially for night diving where the blundering into a net is a definite possibility, but my life isn't worth £200 rofl
If it was less than £100 I would probably get one, especially for night diving where the blundering into a net is a definite possibility, but my life isn't worth £200 rofl
I was not intending on insulting any scubadivers with my remark,my comment was coloured by the jokelike "conflict" I have with some of my scubadiving friends in the local divingclub...
This bit about risktaking and safetydevices sounds very logical though,a friend of mine used to work as a logger, and he has cut himself three times with the chainsaw,but only when wearing protective gear...
This bit about risktaking and safetydevices sounds very logical though,a friend of mine used to work as a logger, and he has cut himself three times with the chainsaw,but only when wearing protective gear...
to quote simos
I got offered air from a scubie before too azapa. I asked when we got out and he said he saw me going up and down and just offered the spare regulator in case I wanted to stay down a bit longer. I tried to explain it wasn't the best idea to take compressed air and then ascent but he said that because it was shallow (probably 7-8m) nothing would happen (probably right but still...).:rcard
MOST DEFINATLY INCORRECT at 10m you are at 2 atmospheres if you have 6 liters of air in your lungs that will double to 12 liters at the surface i think you can work out what happens . from 7-8 m still very bad things happen.
these first few meters are the worst place to be holding you breath on compressed air (NEVER UNDER ANY CERCUMSTANCES HOLD YOUR BREATH FROM COMPRESSED AIR)
as for the reseve air concept and entanglement i think you are more likely to find the air suply the cause of entanglement.
if i get caught on anything i find it's a knife or something sticking out.
so i think the thing you are looking to save you is going to be what got you into trouble in the first place
I got offered air from a scubie before too azapa. I asked when we got out and he said he saw me going up and down and just offered the spare regulator in case I wanted to stay down a bit longer. I tried to explain it wasn't the best idea to take compressed air and then ascent but he said that because it was shallow (probably 7-8m) nothing would happen (probably right but still...).:rcardMOST DEFINATLY INCORRECT at 10m you are at 2 atmospheres if you have 6 liters of air in your lungs that will double to 12 liters at the surface i think you can work out what happens . from 7-8 m still very bad things happen.
these first few meters are the worst place to be holding you breath on compressed air (NEVER UNDER ANY CERCUMSTANCES HOLD YOUR BREATH FROM COMPRESSED AIR)
as for the reseve air concept and entanglement i think you are more likely to find the air suply the cause of entanglement.
if i get caught on anything i find it's a knife or something sticking out.
so i think the thing you are looking to save you is going to be what got you into trouble in the first place
yes agree shrek - sorry if i wasn't clear.. wasn't saying that i would hold my breath and go up or recommending that anyone should, it's a bad idea
i meant that even if you did end up taking compressed air in at 6-7m it's not that risky to do an emergency ascent if you know how (basically constantly exhaling air as you come up). in most scuba courses student practice this...
or recommending that anyone should, it's a bad idea i meant that even if you did end up taking compressed air in at 6-7m it's not that risky to do an emergency ascent if you know how (basically constantly exhaling air as you come up). in most scuba courses student practice this...
Great to see some discussion again on this topic.
Originally I got the idea of using the Spare air as a back-up as we did some wreck diving here in Finland. Having pitch dark waters and no natural light what so ever after 20 m, the fear of of being caught or trapped is imminent as you probably wont even see the danger before it´s too late (like swimming into a net). Also, dark suits and choppy waters adds even more risk. If you suffer a swb, your buddy wont most probably find you in time.
The idea was to keep diving according to my normal schedule (dive time max 1:30) and then either keep the spare air in the mouth all the time or only on the way up. I know there are probably issues with the setup and as mentioned it could actually increase the risk. However, before someone actually tests it, and with different setups and procedures, for multiple dives... anything we say here is pure speculation. I´m not saying it will work perfectly, I´m saying Id like to test it and perhaps we someday could get something that actually works.... or not. This actually applies to any counter-ballast, buddy system or lan-yard safety currently used. In theory all good systems, but in practice nobody knows how they work.
Thanks Shrek.
The situation still confueses me. I was at 25m. The thing that really gets me is the level of experience of the guy who offered me the reg. I am not exaggerating if I say he is an associate to one of the most known scubbies in the world. As I said before: my bad being too embarrassed afterwords to ask him what it was all about!
The situation still confueses me. I was at 25m. The thing that really gets me is the level of experience of the guy who offered me the reg. I am not exaggerating if I say he is an associate to one of the most known scubbies in the world. As I said before: my bad being too embarrassed afterwords to ask him what it was all about!
to quote simos
Don't get too worked up about it azapa it was either a joke (making a point that you can just breathe and no having to go up and down) or there's a small chance he thought you might have needed it or something. Or was just offering to you so that you could dive with them on his spare reg (silly I know!).
Or most probably he didn't give it any thought and was a bit shocked to see a freediver down there.
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it was either a joke (making a point that you can just breathe and no having to go up and down) or there's a small chance he thought you might have needed it or something. Or was just offering to you so that you could dive with them on his spare reg (silly I know!). Or most probably he didn't give it any thought and was a bit shocked to see a freediver down there.
Posted via Mobile Device