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One deadly reality is that "silt out" can happen when you arn't even thinking about it. With reel, line, light and training you have a much better shance to get out alive. Silt out -grab the line, can't find it,don't move, tie off and start looking. Been there done that. Practice practice...

I test every tank for O2 and CO. I've only had some 5 ppm s. I went for zeros (CO) and got 'em. Not worth the risk. 2000 dives. I've found EANX 42 where EANX 28 should have been in doubles not topped off with air. Why not test ? What's is your life worth ? That's my approach with first...

Good shop good people.

Thanks for the responses. Petrel 2 is on the way.

WOULD LIKE A TRIMIX OPEN CIRCUIT COMPUTER TO DISPLAY PO2, DIVE RITE Q DOES DO ANY OTHERS. tHANK YOU FOR OUR RESPONSES. DR. E DIN NELSON CINCINNATI, OH ---------- Post added August 15th, 2015 at 05:54 PM ---------- I see the petrel 2 also does.

Do any other trimix open circuit computers other than the dive rite q read out p02 at your given depth ? I dive trimix oc and i like to know my po2 at my depth on the gas i am breathing. Thanks for your responses.

OW 1965 1350 OW dives Advanced Nitrox '01 Hypoxic Trimix '04 Full Cave '06 250 cave dives Backmount Hogartihian

Interesting read. You took me right back there. Seven years ago now. Thank you.

Simplified: Same reason 85 degree water is "colder" than 85 ddegree air.

Wow this all seems sooo strange. I was certified in 1965. No tank pressure guage just a J valve. Whenthe breathing got tough (hard to breathe) you had 5 min to the surface before out of air. Npw we have SPGs and most diverd die because they are "out of air" ...

Richard DeVan was an avid diver | Cincinnati.com | cincinnati.com

I am sorry if this is too late do do you any good. Contact Christine at UNEXO Grand Bahama, or Ben Cook at the NACD web site. Either can guide you. Owls hole and Mermaids Lare are hard to find without a guide. There are no signs just dirt roads. I have dived both, they are 75 ft plus...

Always nice to see where I've been. I was there 5/08. Cheers !

Dear OpticDive, I spent my first 75 Cavern, Intro, and Full Cave dives in a TransPak. For me the happiest day of my cave diving life was the day my instructor insisted I try a back plate and wings. I found it much more stable. I think it depands somewhat on your body type. If I had it to...

I have been an openwater divcer for 40 years. Cert adv. nitrox. Karin Buchel was my intro to cave instructor. She was very professional, intelligent, thourough,and a consumate drill master. It is such a pleasure to be trained by someone who is at once gracoius and professional. I would...