DECO the Dark site in recreational Diving

[Remy B.]

Those Navy dive tables you have there, be very careful with those. I have used those for years. Those tables were created using real divers doing real dives; except those divers were in very good physical condition. Better condition than most divers, low body fat, good blood 02 /C02 exchange rates..etc. I've always fudged those stops with more time because I am not a navy diver. So a 5min stop at X becomes a 8 min stop. The next stop might require 10min @ X that becomes 15min @ X. DON'T cut those time close sooner or later you will get hit.

---------- Post added October 3rd, 2014 at 07:21 AM ----------



The navy doesn't need safety factors. They have chambers and trained medical personnel. Do you?

Totally agree with you to add the extra time, I guess we all where told, to round up to the deepest number due because the conditions of the divers were in that test in the given time, I not fat that is for sure, try to keep fit all the time, still I don't push the bounderies

 

[rivers]

Totally agree with you to add the extra time, I guess we all where told, to round up to the deepest number due because the conditions of the divers were in that test in the given time, I not fat that is for sure, try to keep fit all the time, still I don't push the bounderies

See, but at your level, you are pushing boundaries. You're going to end up bent or dead

 

[Remy B.]

Seriously, deco diving is something to be learned from a competent instructor, not from posts on SB. SB is a great resource for supplementing what one learns in a course, but I hope you're not relying on what you read here as though it were actual training. I sure wouldn't.

Agree with you, again perspective and assumtions, normal behavior of misunderstanding in internet forums, many people assume what posters are thinking and what are not or are understanding.

Put all those peoples together in a room, completly different.

 

[lv2dive]

RemyB... The thing that differentiates "TEC" diving from recreational diving is that a direct ascent to the surface is no longer possible... So you have to be able to deal with anything that comes your way. In tech diving you practice things until they become second nature so you can rely on those skills to be there when you need them, because the potential price is so high.

Tech diving isn't about being able to do the dives when everything is going well, it's about handling the situation calmly and correctly when one - or more - things go wrong.

 

[Remy B.]

Like it was said, making a DECO stop is not rocket building, knowing how to deal with problems is part of training and practice of those senarios is what get you safe in order to not jump your DECO time.

And you can have all the experience and practice, that don't make you bulled proof, it is how you mind set is, I'm not saying it is not important, it is and it give you some tools, far to many times I hear from accidents where experienced personel make mistakes or get in to panic and they have lost it, granted it give you a better chanse of create muscle memory, more you do it.

At the end one thing was missed from the very beginning is, what I wanted to do, dosen't mean I will do it, or that I will do it without necessary preparation.

It is directly assumed, that because I don't have enough dives, I will jump in to DECO alone by my self, no air, no DC no time tracking, no depth gauge, no planned dive, no risk ascesment, in a complete new dive site, and not knowing what DECO stop is.

The problem is what can go wrong down there while you need to get your DECO stop.

By far more, I will never do a DECO stop alone, I will need somebody that is willing to do it, and I will not go in to DECO with somebody that I don't know, trust, don't have enough Experience ( that means a lot of experience and that have done DECO many times ), in far more important is that it is not affraid to do DECO, guess who have a challange to do a DECO me, because until I don't find all those pieces together it is a NO GO, can I do a DECO sure I can and everybody can, is the conditions in what you do them what needs to be taken care off.

All the intention of the original post was to gather opinions, and I knew what to expect, and can see partially the interaction/mind capasity of the different individuals.

Most of the exposed I already knew, it was assumed that I didn't, perfectly normal, did I learn new things yes I did, specially that the US navy tables don't have safety factor in it, wrong assumtion from my part, but I never was planning to get over them anyway and always add my own extra time even to a safety stop.

Again thanks, all interventions are taken, even the ones that did not bring nothing useful, those as well tell partially how the indivual capacity to aport.

Please continue adding to this Thread

 

[Minion_Diver]

The reason why many people assume what the posters are thinking is that the OP does not tell the whole side of what they are thinking. When that happens you end up with people assuming different things about the OP.

I know whenever I first got into diving I wanted to go the deep wrecks that are past the NDLs but after looking into what it would take to get to them I was not interested at that time to go to those depths without the proper training. Since then I have been on the road to get the training and learn from other experienced divers so I can proper do those dives without the chance of DCS.

In complete honesty. You are wanting to push the limits just a little bit which might be okay for a while, but when you are on one of those dives where you are pushing the limits, without the proper training, something is going to go wrong and you are going to get bent or die. It is not a matter of if something is going to happen, its a matter of when something is going to happen.

 

[Remy B.]

RemyB... The thing that differentiates "TEC" diving from recreational diving is that a direct ascent to the surface is no longer possible... So you have to be able to deal with anything that comes your way. In tech diving you practice things until they become second nature so you can rely on those skills to be there when you need them, because the potential price is so high.

Tech diving isn't about being able to do the dives when everything is going well, it's about handling the situation calmly and correctly when one - or more - things go wrong.

100% agree with you, the only thing I don't is I still think that you can get bent even add recreational depths and ignoring your safety stops, I believe no body is created the same, what one can tolerate doesn't mean other can, it is just my personal view, I still think one can get a bad NDS without getting in DECO, in the DECO you just are guarantied to get it no matter what if you skip it.

 

[RJP]

100% agree with you, the only thing I don't is I still think that you can get bent even add recreational depths and ignoring your safety stops, I believe no body is created the same, what one can tolerate doesn't mean other can, it is just my personal view, I still think one can get a bad NDS without getting in DECO, in the DECO you just are guarantied to get it no matter what if you skip it.

For the same reason that people can get bent doing recreational dives w/in NDLs... there's also no "guarantee" that a diver will get bent if they violate deco protocols. Of course that really does depend on the dive profile - blowing off 45min of staged deco being different than trimming a few minutes off a minimal obligation.

 

[Lorenzoid]

. . .
At the end one thing was missed from the very beginning is, what I wanted to do, dosen't mean I will do it, or that I will do it without necessary [-]preparation[/-] training . . . .

Fixed it for you

 

[lv2dive]

If one is seriously afraid of losing their mask - one has no business talking about decompression diving. Just sayin. That's where a lot of the concern is coming from.

Or... (And I left more of the quoted post in, on purpose)... GET TRAINING. Losing one's mask should be WAY down on the list of concerns on someone who is contemplating tech diving. If that is the intent of the OP, go for it!

...
Yes not dought about it I need training never see me without training, and always driving my self to get there when time and money allows it.

My worst fear is that I loose my mask, no good at all, since you can't read no press gauge, no depth gauge, no DC, no watch for time trancking, even If I can count on my dive buddy, I still don't take it for granted.

---------- Post added October 3rd, 2014 at 10:21 AM ----------

Whoa Nelly! Nothing in my post said you couldn't get bent doing recreational diving!!!! You aren't guaranteed safe sticking to ndl. Nor are you are *guaranteed* to get bent if you blow through a stop - but it is much more likely than if you follow your schedule.

Decompression is not a fine line - please don't read anything I said as such. My definition is a standard definition... Technical diving means you have created a virtual overhead where you do not have a direct ascent to the surface. Period.

100% agree with you, the only thing I don't is I still think that you can get bent even add recreational depths and ignoring your safety stops, I believe no body is created the same, what one can tolerate doesn't mean other can, it is just my personal view, I still think one can get a bad NDS without getting in DECO, in the DECO you just are guarantied to get it no matter what if you skip it.