I have a Mares Abyss and I like it,( I know here come the comments), but I have a questions regarding adjustment of the air flow. I usually get a slight headache after a dive, but respect the ascent rates and always do a safety stop. I was speaking to a guy after my last dive and he said maybe I am not getting enough O2. I have had the reg into the shop since I first got it, is there a possibility that there is an adjustment and it is turned too tight?
Mares Abyss Adjustment???????
- Thread starter drtheo
- Start date
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drtheo:
The headache imo come's from the fact that a lot of divers do not drink enough
before diving and since your breathing air is 100% dry they get dehaydrated.
It is not possible to reduce the amount of o2 with a regulator this remains 21%.
the only thing they can ajust is the intermediat pressure and the
cracking pressure
Or it might be CO2 build up from not taking long, full breaths. So, I'd agree it's not the reg, it's the lack of moisture, or co2 buildup. (BTW, the Bio Filter is awsome at adding moisture back in: http://www.scubatoys.com/store/detail.asp?PRODUCT_ID=BioFilter and the abyss would take the 1/2")
Another possibility....
The Abyss is a pretty hefty second stage and the mouthpiece it comes with sucks large! I always used to recommend that people get a seacure or other good mouthpiece to reduce jaw fatigue.
Jaw fatigue can also lead to a headache.
If other regs didn't cause this problem and the Abyss always does that may be the reason or one of the ones above.
The Abyss is a pretty hefty second stage and the mouthpiece it comes with sucks large! I always used to recommend that people get a seacure or other good mouthpiece to reduce jaw fatigue.
Jaw fatigue can also lead to a headache.
If other regs didn't cause this problem and the Abyss always does that may be the reason or one of the ones above.
Goober2
Guest
cerich:
I totally agree... although new to diving, my first dives in the pool gave me the WORST headaches from jaw fatique (i have the abyss) and ended up doing my last pool dives with my other reg. I got a seacure and voila! I just got back from Roatan and had NO jaw fatigue even with 2 50 minute dives per day!
aquaoren
Contributor
I somehow have my doubts that there is a big difference in the weight of second stages underwater. I'd rather hazard a guess that the jaw fatigue is caused rather by inappropriate hose length or routing.
I'd agree though that the mouth piece sucks big time. It's rather "flimsy".
I'd agree though that the mouth piece sucks big time. It's rather "flimsy".
BIGG_BUDD
Contributor
I agree with Larry, it's most likely breathing. A DM taught me to add a couple of pauses to my exhale. That seemed to do the trick for me...
I dove the Abyss last year and agree with the assesment that the weight of the reg could lead to stress on your jaw leading to a headache. I went with a Mares Proton Ice with a Seacure mouthpiece and haven't thought twice about it.
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