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Technical Spearfishing Technical Scuba diving is generally defined as going deeper than 130 feet. You must have the proper training for this extreme aspect of spearfishing. |
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11-28-2010, 08:10 PM | #61 |
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Re: DCS? Advice please
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11-30-2010, 04:50 PM | #62 |
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Re: DCS? Advice please
Yes I'm missing something?
Yes it is allowed in the chamber? Or yes someone would almost certainly die doing this haha. |
11-30-2010, 05:37 PM | #63 |
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Re: DCS? Advice please
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12-01-2010, 01:22 PM | #64 |
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Re: DCS? Advice please
B7 -
my memory of some of your past posts is that you have been an active and fit diver, but also, that you have scoffed at the additional tec training you clearly would benefit from. I do not say that in an offensive way. But just by asking the questions you have, implies you are insecure about your knowledge base and training. Take the tec courses you have talked about in your other posts. Especially decmopression diving and advanced nitrox. Learn more about inserting your own deep stops into your profile - this practice has it's own risks when you do it arbitrarily and without any background knowledge. Feel some pity for your dive computer - which has no model for keeping track of arbitrarily inserted deep stops (other than increasing your on-gas time) and bounce diving. You are on your own when you do that. And anytime you have a question about your diving health, CALL DAN, don't look for reassurance on spearboard. Finally, don't blame your captain for calling you back to the boat - it's not his fault you bounced back down before coming up again.
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12-01-2010, 06:45 PM | #65 | |
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Re: DCS? Advice please
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04-05-2011, 07:54 PM | #66 |
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Re: DCS? Advice please
Wet diver and dry diver PP02's are different. You can breathe 100% O2 in a chamber at 60 feet with no problem. In the water not so much, 40ft is right at the max limit. 60ft you are increasing your chances of an O2 hit.
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04-10-2011, 03:43 PM | #67 |
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Re: DCS? Advice please
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04-10-2011, 05:39 PM | #68 |
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Re: DCS? Advice please
Most people would agree that the maximum depth on pure 100% oxygen is around 20 feet (not 40)
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04-11-2011, 12:55 PM | #69 |
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Re: DCS? Advice please
i agree with him 33 you'll take a hit
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04-20-2011, 10:33 AM | #70 | |
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Re: DCS? Advice please
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I'm not sure what your diving capability is and how much you know. If you are just an open water diver then I don't expect you to know this stuff or for you to be using 100% oxygen as small errors can kill you. Like most things in diving they are based off formulas and not not what most people consider the right depth or mix or whatever the case may be. |
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04-20-2011, 10:45 AM | #71 | |
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Re: DCS? Advice please
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04-20-2011, 12:39 PM | #72 | |
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Re: DCS? Advice please
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I bite my tongue and in the nicest terms I know how, suggest that 20 feet rather than 40 ft is mo' betta for oxygen. and then you come back and give me shit? Lets make it simple.. what max PPO2 are you recommending that people use in open water and what depth does that correspond to with pure oxygen? You can use formulas or whatever else you want, but I don't like to leave dangerous mis-information up on a thread, without saying something.
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04-20-2011, 09:19 PM | #73 | |
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Re: DCS? Advice please
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I said 40 feet is the max limit. (Post #66) 1.3/1.6 is a recommendation based on years of scientific research on behalf of the US Navy. (Post #70) I did not say that 40FSW is the normal depth for breathing O2. Nor did I say you should breath O2 at 40 FSW... I SAID IT WAS ABOUT THE MAX LIMIT.. I'm not giving you shit. I just tried to explain that diving to a depth where O2 is needed for decompression requires the use of formulas. Post 66 and post 70 are talking about two different things as 1.3/1.6 ata's is not 40FSW. To answer your question.. .. I'm not recommending anything. Why would I.. Especially with idiots out there who will go out and try it with no experience or knowledge to what they are doing. Diving is inherently dangerous and everyone has a different tolerance levels just like drinking. Giving you a depth and PP is irrelevant. The number to which most adhere by is 1.3/1.6 as stated in Post 70. exceeding that increases your chances of an O2 hit. At the same time you can still get a hit from a lesser PP. Take a class, read a book, become your own science experiment... At least then you will know what your O2 toxicity tolerance is. Last edited by EpicAdventures; 04-20-2011 at 09:47 PM. |
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04-21-2011, 01:27 PM | #74 | |
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Re: DCS? Advice please
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100% 02 with 1.6 PPO2 is 20' 100% O2 with 2.2 PPO2 is 40' 100% 02 with 2.8 PPO2 is 60' Choosing to beathe 100% 02 at 40' is almost sucidal. Breathing 100% 02 at 60' and chances are you will not be surfacing. |
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04-21-2011, 01:50 PM | #75 | |
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Re: DCS? Advice please
Quote:
DO NOT breath oxygen over about 20 feet in the ocean without a full face mask and supervision.
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