KentB
Contributor
So last weekend we went to Vancouver island and dove some wrecks, even though I did my nitrox class last year these were my first dives with nitrox, and I surfaced with a massive headache every time which subsided in 10 min completely on the boat. no deco dives and not even close by surface
dive 1 Saturday we did the Capilano on 28% 122ft max depth, 24 min run time it was super bad vis 3-5 ft from surface to 80 feet where it opened right up. perdix said I had 85 min of NDL left by the time i reached 15' for a 5 min stop this was the first wreck Id done without a line and was a free descent and ascent in whale snot. lowest NDL got to was 5 min
dive 2 saturday 1 hr 51min surface int. 28% we did a wall near the ship 117 feet 39 min total time lowest NDL got to was 4 min
dive 3 sunday- HMSC Saskatchewan totally fantastic dive worst headache from the 3 dives
101 feet 37 min total time on 32% lowest NDL got to was 11 min . I opted not to do dive 2 on it.
the more experienced divers said they figured it was CO2 retention.
the same guy filled all the tanks for the 5 of us at same time for the 5 of us diving OC the 6th member was diving a rebreather
I didn't notice if i was skipping breathes or anything my air consumption was right where it normally is unless I unconsciously do this with air and its just not as noticeable on air as nitrox.
Ive been to those depths before on air as well quite a few times but not quite as long.
I was also stressed out at work so im sure this may have played a factor.
anybody have any thoughts or insights?
dive 1 Saturday we did the Capilano on 28% 122ft max depth, 24 min run time it was super bad vis 3-5 ft from surface to 80 feet where it opened right up. perdix said I had 85 min of NDL left by the time i reached 15' for a 5 min stop this was the first wreck Id done without a line and was a free descent and ascent in whale snot. lowest NDL got to was 5 min
dive 2 saturday 1 hr 51min surface int. 28% we did a wall near the ship 117 feet 39 min total time lowest NDL got to was 4 min
dive 3 sunday- HMSC Saskatchewan totally fantastic dive worst headache from the 3 dives
101 feet 37 min total time on 32% lowest NDL got to was 11 min . I opted not to do dive 2 on it.
the more experienced divers said they figured it was CO2 retention.
the same guy filled all the tanks for the 5 of us at same time for the 5 of us diving OC the 6th member was diving a rebreather
I didn't notice if i was skipping breathes or anything my air consumption was right where it normally is unless I unconsciously do this with air and its just not as noticeable on air as nitrox.
Ive been to those depths before on air as well quite a few times but not quite as long.
I was also stressed out at work so im sure this may have played a factor.
anybody have any thoughts or insights?