Fatty tanks of Nitrox!

[NAM001]

Wouldn't the benefits be negated if you are the only one on the boat with such a tank?

if your sac is not as good as the others it will balance things out time wise. is your sac is good then you have a lot of reserve if you need to share. You can also afford toe e the last on on the boat to let those low on air to get onboard. The al100 I used was the same in the water as my lp95

 

[scubafanatic]

Well, it is their standard practice, so theft might be a little strong. Still annoying. Maybe i will see if I can get an answer why?

'standard practice' to steal makes it OK ? They are cheating their customers on a mass scale!

 

[cvchief]

'standard practice' to steal makes it OK ? They are cheating their customers on a mass scale!

I get what you are saying, but one could also look at it as this is the price for a 100 filled to 3000. It isn't like they are sneaking it by anyone. I assumed the nitrox 100 would be arrive at 3000 and it did. Im not saying I like it, but it isn't like I didn't know what the deal was or that they promised 3300.

 

[ggunn]

'standard practice' to steal makes it OK ? They are cheating their customers on a mass scale!

I agree with whomever said that calling it theft and stealing is a bit strong. No one is holding a gun on you or breaking into your house.

 

[halocline]

The best ways to reduce risks of hits is deep stops, slower ascents, and the long safety stop.

Long safety stop and slow ascents, yes. Absolutely no evidence on deep stops for recreational diving, and some indication that deep stops 'may' increase N2 load, again, in NDL diving. I have found I feel best after 3 mins at 20ft and at least 5 at 10ft (sometimes more) in the kind of profiles Cozumel diving usually offers. A good very simple strategy is to just hang at 10ft until your computer N2 bar graph goes from 'yellow' to 'green'. On some repetitive dives this not practical because one of the slower compartments may be controlling, and those take longer to off-gass. Then a VERY slow ascent from 10 ft, maybe taking a good 30 secs-1 min to surface.

But in terms of avoiding DSC overall, I would also include good hydration, fitness, and avoiding up-down-up-down profiles.

As far as nitrox being a waste on Cozumel, I agree that with 2 dives/day given the typical multi-level profiles, it's not worth the extra cost, at least to me. But, if I were doing 4 dives/day I'd use it.

 

[DandyDon]

Long safety stop and slow ascents, yes. Absolutely no evidence on deep stops for recreational diving, and some indication that deep stops 'may' increase N2 load, again, in NDL diving. I have found I feel best after 3 mins at 20ft and at least 5 at 10ft (sometimes more) in the kind of profiles Cozumel diving usually offers. A good very simple strategy is to just hang at 10ft until your computer N2 bar graph goes from 'yellow' to 'green'. On some repetitive dives this not practical because one of the slower compartments may be controlling, and those take longer to off-gass. Then a VERY slow ascent from 10 ft, maybe taking a good 30 secs-1 min to surface.

But in terms of avoiding DSC overall, I would also include good hydration, fitness, and avoiding up-down-up-down profiles.

As far as nitrox being a waste on Cozumel, I agree that with 2 dives/day given the typical multi-level profiles, it's not worth the extra cost, at least to me. But, if I were doing 4 dives/day I'd use it.

I'll agree with most of that. Maybe the deep stops have been ruled ineffective after all, but with Co multilevel diving - mute point. I think that the emphasis on hydration has been ruled an exaggeration now, but that one is probably so much in common thinking, and not a problem, so it'll stay regardless.

Then this...

A good very simple strategy is to just hang at 10ft until your computer N2 bar graph goes from 'yellow' to 'green'.

Yeah, always. I think my Oceanic computers are conservative enough, but I always try to get them into the green before ascending. May not happen after a deco as getting to green the takes so very long, but I try.

Passing your kit to the captain so you don't stress climbing the ladder also helps ensure safety in several ways, including avoiding a hit.

 

[ggunn]

Passing your kit to the captain so you don't stress climbing the ladder also helps ensure safety in several ways, including avoiding a hit.

Do you have any evidence connecting climbing the ladder geared up with a DCS hit?

 

[DandyDon]

Do you have any evidence connecting climbing the ladder geared up with a DCS hit?

Oh, I am sure I could find plenty. You didn't know?

I doubt that my searching would be rewarding. It's been covered in the medical forums.

 

[blue steal]

I used to take off my backplate and wing and hand it up. That is until it got dropped on the side of the boat and cut open my bladder.
Now I just climb out.

 

[DandyDon]

Another safety extra is to float on the surface without excretion for a minute. I think Dr.Deco calls this the "silent safety stop" for some reason. That's rather easy to accomplish in Coz since the boat usually has to chase down surfaced divers, and they advise you to just float and wait - not swim. This one is more important to remember i other locations where a diver ascends on a mooring line directly to the boat. In North Carolina, they hang a deco line, horizontally around 15 feet deep for long safety stops & deco obligations, but it's nice to also have a drift line where one can float a few feet behind the boat for a minute or more - avoiding ladder congestion.

Never float under a diver climbing a ladder anywhere of course. Sometimes they fall tank first.