Mailing List Archive Mailing List Archive
John, you are mixing strokeaphors here: the high ppo2 reference was to the suggestion by one no-show bullshitter that you can jack up the ppo2 througout the deco and get out faster, if you get out at all ( using an electronic rebreather with a high setpoint). The 80/20 think is somebody else pointing out that part of the genesis of that particular stupidity was so that strokes who can not control buoyancy could use a high ox mix while flailing up and down in the water column with less tox risk. This also satisfies the agency-induced fantasy that waves causes huge depth changes for the strokes who go out in a gale to dive. Not so - do it all the time. For other discussions of either subject, see the old information. By the way , jacking the ppo2 deep is unnecessary and a formula for tox later in the deco as well as pulmonary damage. The relief gained by using a four or five gas deco with four steps is necessary to make it through the whole deco with less damage and less chance of tox. The alternative is to jack the ppo2, as on a CCR, and then take long back gas or air breaks - too dicey, and unnecessary. This was a fantasy created to help sell rebreather diving by people who do no real diving. We do it, we tried it all, we have some samll idea what works and what does not. We also can identify the true risks sicne we actually do it betting our own lives, rather than the lives of some desparate wannabe college students guineau pigs or other vargrants, and until the BS'ers do it, their opinion is garbage. John, what do you do, read old newspapers ? John Dunk wrote: > > On Sun, 23 Nov 1997 16:50:04 +1000, you wrote: > > > 4) In this same interest you will find that when you graduate to real > >diving, as in caves, you will not want to accellerate your ppo2 at > >lower depths while still being faced with a long decompression at > >shallower depths, and making bizarre mixes to do this is a dangerous > >mistake (just like the fantasy of holding an accellerated ppo2 on a > >rebreather throughout a deco). I am anticipating the thinking that the > >80/20 crowd would then go to an additional oxygen in cave without > >accounting for total exposure, and subject themselves to the risk of tox > >in the final deco steps. Tox you do not get out of - bends you do. > > Would someone explain' the "fantasy" of holding an accelerated ppo2 > on a rebreather throughout a deco ' and why it's a fantasy?Are we > talking tox here or what?And how does 80/20 supposedly help divers > with poor buoyancy control? Hope I didn't come inb too late on this > one. Also, someone mind listing the claimed benefits of 80/2?. > Thanks > > John Dunk o > Tallahassee,Fl o > screwloose@el*.co* ____o_____ > -- > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]