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� I have been using 100% for a long time now and even when im hanging from the line in some situations� i do get some variations.in depth. Im not worry if they are in the range of a meter, ( if that's more in your case you need to worry ) but there is no need to say that you shouldn't lift your eyes from the bottom timer. Many thinks can happen , ed. deflation of the lift bag , once i saw an idiot who who had the bright idea to inflate his wings when he was holding on the rope.Because there was no current at all and some slag he shoot everyone 2 meters up. ( That's why i like john lines ). I really see no reason of falling down to 9 meters when properly decompressing which means under a lift device or a line. Manos � "Shimell, David (shimell)" wrote: > Tim > > I would not worry about minor and short variations in depth of the kind you > mention.� However, you should be practising DSMB deployment and your deco > under a buoy.� Some UK Trimix groups deploy a deco station, some do drifting > deco under a DSMB.� Even if you are a "shotline person", you need to carry > and be able to deploy a DSMB from the wreck in the event of not being able to > get back.� It is also good to practice deployment in "blue" water. > > I would spit out my regulator and go to the backup (back gas) if I could not > immediately regain control of my buoyancy.� Generally, it will do no harm and > have no detrimental effect to go to back gas for a short time.� I would not > even adjust my deco as a result. > > When I did my Trimix training we had to bring a Casio to time our stops to > the second.� Watch out for this sort of obvious nonsense as it has much to > offer in humour potential on your course. > > David Shimell > shimell@se*.co* <mailto:shimell@se*.co*> > DDI: 01932 814096 * Mobile: 07770 282 202 * Fax: 01932 814343 > Project Manager, IBM UK Web Server Group, Sequent Computer Systems Ltd, > Weybridge Business Park, Addlestone Road, Weybridge, Surrey, KT15 2UF, UK > registered in England and Wales under company number: 1999363, registered > office as above > > -----Original Message----- > From:�� Tim Farmiloe [SMTP:Tim@tl*.de*.co*.uk*] > Sent:�� Tuesday, June 06, 2000 1:01 PM > To:���� techdiver@aquanaut.com > Subject:������� Oxygen Toxicity - using 100% in open water > > I think I remember reading a thread about deco in open water on 100% but > could not find it in the archive. > > I am preparing for a Trimix course (IANTD in UK) and I am practising hanging > on deco at 6M (19.5 feet) before I switch to using 100%. I find that I am > fluctuating between 5.7M (18.5 feet) and 6.6M (21.5 feet) in calm conditions > and not attached to a shot-line or buoy. > > >From what I have read this seems to be safe enough but I would be interested > to know if others are able to control buoyancy more reliably. In some > unimaginable emergency, at what depth would you spit out your O2 reg? > > A pointer to the right thread would be appreciated. > > TIA > > Tim > > -- > 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'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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