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Manos, Trey is absolutely right with his tip. When switching, you switched from 42 % Nitrigen to 64%. It is not the absolute EAD which narced you , but the sudden change of it. You can get narced in about the same way when to hit the depth on air, say go down in half a minute to 35 m. So the less difference in pN2 after , the less narcosis. Matthias Manos Manoli schrieb: > > Something i got it sorted , and i want to share !! > > Ok last month i dive a wreck on 65m for 35minutes. > I used Trimix 18/40 , nitrox 36 , and O2 on 6m. > After a deep stop on 45m i moved on to33m where i switched to ean36. > Although 33m doesn't sound much as a narcotic depth after 2 > breaths my head started to spin like hell. I felt like being in a barrel > > rolling down a slope...i switched back to my bottom mix and stayed there > > for a while. , i stayed a bit more and i switch again on my deco > mix at 27m the barel stoped !. I have learned my lesson...... I have a > > friend who works in a lab , i had him checking my deco gas... levels of > Co2 > where acceptable.. > Trey suggested to add a bit of He on my deco mix and i did on the next > similar > dive i was fine. I wonder what caused so much narcosis at such a depth > ? > Could it be that i was tired all day long on board searching for that > wreck ? > > So here im from now on i will switch on trimix 36/20 or better > ill stay a bit more to my bottom mix and switch to 50/50 on 22m.. > > Manos Manoli > www.smiley.cy.net/cytech > > -- > 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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