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Mat, you stupid bastard, If you want to be taught how to drift or tech dive, you're asking the wrong way. And if I am going to spend time trying to explain things to you, at least get straight what I have already said---I told Mimms I would typically use AIR on drift dives over thousand foot deep blue water, and that his idea to use nitrox was stupid becuase too many recreational divers could push to O2 tox from from bad judgement---this being FAR MORE catastrophic than getting narced at 140, should they inadvertently venture that far down, eith by mistake ( watching a pelagic too intently) or a buddy's misfortune. I also said I usually do these drifts within the 20 to 50 foot deep level, in which air is really all you need. I only suggest 190 foot (MOD) trimix for dives I might do in the vicinity of 100 feet---but where I may need to go somewhat deeper ( for a buddy or for a pelagic encounter ). Nitrox for recreational use belongs on shallow ( less than 80-90 feet ) reefs or wrecks--places with hard bottoms. Nitrox does NOT belong on a Gulfstream Drift Dive over no bottom. If you can't get this straight in your mind, How can I possibly teach you about mix or drift diving. Dan > > > Dan, > > Mix for an 80-90 foot wall dive is way overkill. What mix is 190 foot > mix anyway? What mix are you talking about anyway. What END and what > MOD? It doesn't really matter though cause an 80-90 foot wall dive > can be accomlished on air! They been doin' that for years... > > Dan you and the WKPP should really go ahead and get PADI etc to just > teach mix from day one. Cause the depth limit for air just keeps on > dropping doesn't it? Soon the air we breath will no longer be OK, > we're simply gonna have to add more helium! Here a mix there a mix > everywhere a mix, mix.... > > Hell, let's just rid of nitrogen all together it just clutters up the > periodic table anyhow! > > Everyone Hail and Praise Heliox! All recreational divers, buy your > doubles, get your DIR equipment hail to the WKPP and Dan. The "Gods" > of diving everywhere! No one dare enter the domain of the WKPP. Join > the WKPP or don't dive at all. And god forbit you dive in a cave! > Then you really in for it! > > Later, > Mat. > > > ---Dan Volker <dlv@ga*.ne*> wrote: > > > > > > > > > > > > > Come on now Dan, > > > > > > Tri mix for a recreational dive to 80-90 ft?? So... just in case > the > > > diver can't control his/her depth. They will now need to carry > > > doubles in case they go too deep (and you also gotta have enough gas > > > for the rescue). > > > > > > 190 FOOT MIX GETS TREATED LIKE AIR FOR DECO/no deco PURPOSES > > recreationally speaking :-) > > If we were at 80 feet and decided to drop to 150 to get a good look > at a big > > pelagic, on returning to 80 we would be diving essentially as if we > were on > > air, but without the narcotic effects. No deco gas would be needed. > > > > Nitrox would prevent us from doing the drop for any reason. It is > shallow > > water mix, NOT deep drift mix. Apparently you know little about drift > > diving. > > Dan > > > > > > > > > > Two deco mixes (50/50 and O2) cause 80/20 is "stroke > > > mix" (rescuing someone at 190 is gonna get you into deco). How > about > > > a canister light. If they gotta go down to rescue someone you're > > > gonna need to be able to see. Oh, Oh! don't forget the rule of > > > thirds. Make sure you plan for that extra gas for.... Actually if > > > you have to rescue someone you better plan for a new rule maybe the > > > rule of fifths. That way you have enough gas to get down to rescue > > > someone at 2-3 times the depth of your dive plan... and make it > back. > > > > > > Yep, you sure got it all figured our Dan! Hey Dan, come to think of > > > it what's the safe depth limit for your free diving? Can you > imagine > > > what would happen if you got hung up on something at depth? You > would > > > drown. I can't believe you even attempted this. This is the height > > > of strokery! You could die? What agency told you you could free > dive > > > to 50 feet? You only have enough gas for one breath for god's > sake!! > > > > > > > > > Yep, Maybe recreational divers should not be able to dive in > anything > > > except swimming pool water that's no more than say 10 feet deep. > Ya! > > > that's it. Come on Dan. Safety yes, but now your gettin' just a > bit > > > carried away. Divers need to be at least partially responsible for > > > themselves. This isn't even a training situation we're talking out > > > here. Let's face it at some point you're going to be adding more > risk > > > by trying to remove risk elsewhere. I though you understood DIR. > One > > > of the concepts is to use the minimum required equipment. > > > > > > In this case trimix doesn't decrease the risk at all. > > > > > > -------------------------------------------------- > > > > > > Dan Volker wrote: > > > > > > Jim, > > > > > > Blue water dives do not require 100 foot depths. 30 or 40 feet is > > > plenty. > > > For this, air would be my choice. Most of the time I do this > stuff, I > > > freedive it---no tank at all, drop to 20 to 50 feet, and just hang > in > > > the > > > collumn. > > > Nitrox would be impractical here for many reasons. Particularly > for the > > > recreational diver whose depth monitoring skills are "challenged" at > > > best, > > > even on a wall dive, a nitrox mix which limits them to 80 or 100 > feet is > > > dangerous at best. If they "think" they can do 90, they may end up > at > > > 140 > > > after only a few moments of watching a big pelagic. If the > concept or > > > plan > > > of the dive was to do 80 to 100, then 190 foot trimix would be a > > > smarter > > > plan. > > > Regards, > > > Dan > > > > > > > > > > > > > > > > > > > > > > > > > > > _________________________________________________________ > > > DO YOU YAHOO!? > > > Get your free @yahoo.com address at http://mail.yahoo.com > > > > > > > > > _________________________________________________________ > DO YOU YAHOO!? > Get your free @yahoo.com address at http://mail.yahoo.com > -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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