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Diving Safety, Accidents and Incidents Post here to discuss accidents, incidents, ideas, gear, or anything else to improve spearfishing safety. Memorials and condolences threads should be placed in that separate forum.

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Old 09-24-2016, 10:49 AM   #1
lictol
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Join Date: Jul 2012
Location: Jacksonville, FL
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Nitrox question

Is there any advantage or disadvantage to loading my bailout bottle with a high mix, say 38%???

My thought is regardless of operating depth, in the event a switch over is made, an emergency situation requires immediate ascent. Would a higher mix possibly help or add an additional margin of safety? Or, am I possibly creating additional risks?

Replies appreciated.
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Old 09-25-2016, 09:43 AM   #2
jfjf
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Location: Palm Bch County
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Re: Nitrox question

Air is simple, cheap and won't get you in trouble if you are a little deeper than you should be and it makes topping off the bottle a lot easier if you just add air when it leaks down.

Often a pony bottle is not that large, so you probably want to keep it filled. Most dive shops aren't going to charge you to add 800 lbs of air when you are getting your other tanks filled.. Now if they have to drain it and do a complete partial pressure mix - just to add 400 lbs.. they might not be so generous.
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