Diving nitrox through twin Al 80's?

[rivers]

hey bud, please allow me to answer this simply as 1) not to agitate or confuse you 2) avoid a unneeded drawn out debate. your instructor is correct in not wanting you to dive but for the wrong reasons, doing doubles means you have been trained to handle a higher echelon of diving. bud is getting a few teeth worth your life?, I am only commenting as a dive medical professional( I run chambers for the military), don't be a story in scuba diving mag and be that guy a lot of folks here will be shaking their heads. If you want to do it , get the cert and not that stuff the other guy who's a Dm is trying to spout, doubles mean technical diving , techheads are NOT looking for shark teeth they are looking for large scale history(caves, wrecks, etc) dive smart for your family, yourself and for the community of diving , cheers mate. Manny

Wow. what a load of complete bollocks. I'm not a technical diver, and I dive doubles (and sometimes, I even have a stage!). They are handy to have for deeper, square profile recreational dives.

As others have said, you don't need a special cert card to dive nitrox in a twinset. Make sure you know the failure points, can reach your valves, etc. When I moved over to twins, I did a one on one day with an instructor to essentially get my squared away a bit quicker as well as work on valve drills.

 

[mathauck0814]

Ah, the infamous PADI Double Tank Nitrox Diver card strikes again!

 

[Boosted98gsx]

Ah, the infamous PADI Double Tank Nitrox Diver card strikes again!

 

[TSandM]

Some of the most thoroughly enjoyable dives I've done have been shallow reef dives in the Red Sea on Al80 doubles. Warm, clear water, full of sunlight, and 150 cubic feet of 32% on my back . . . why would anybody ever come up? (Many times our max depth was in the 30 foot range.)

 

[Roman_66]

Double course especially for Nitrox sounds ridicules , but as some people here, I also did doubles course, when started use doubles.
I am happy that I can build doubles now from zero level and not afraid from V-drill.
In some places to rent doubles you need to show technilcal or doubles course certification.

 

[kelemvor]

Ah, the infamous PADI Double Tank Nitrox Diver card strikes again!

As usual, the PADI training is insufficient. With SSI you can take the left tank specialty, right tank specialty, and manifold specialty. Once you've completed all three you get upgraded to to "Doubles Diver."

 

[Boosted98gsx]

As usual, the PADI training is insufficient. With SSI you can take the left tank specialty, right tank specialty, and manifold specialty. Once you've completed all three you get upgraded to to "Doubles Diver."

You forgot the "how to put the doubles on" training certificate.

 

[Roman_66]

You forgot the "how to put the doubles on" training certificate.

Certificate is too much, but it was big different how my instructor builded doubles from scratch and how I repeat after him on second set

 

[DeepSeaExplorer]

I don't think I was very clear in my intended depth to use this kind of setup. Venice beach "boneyard" is at ~30ft depth. Virtually no risk of decomp issues as long as basic limits are heeded. That's why I want to run doubles on 36%.

I've done the exact dive you're talking about. Swam out from the beach with double 80s and got 3.75 hours of bottom time. Found about a dozen small teeth.

FYI, it's a long swim. It took us an hour and twenty minutes to get out there and was a tough swim back because the tide was changing.

BTW, I dove air. Nitrox is overkill for that dive.

---------- Post added August 6th, 2014 at 03:19 PM ----------

Double course especially for Nitrox sounds ridicules , but as some people here, I also did doubles course, when started use doubles.
I am happy that I can build doubles now from zero level and not afraid from V-drill.
In some places to rent doubles you need to show technilcal or doubles course certification.

Yep. In cave country, you can't go into the water with doubles unless you have the proper cave certification that includes doubles training.

 

[divad]

[QUOTE=DeepSeaExplorer;7190351
FYI, it's a long swim. It took us an hour and twenty minutes to get out there and was a tough swim back because the tide was changing.
.[/QUOTE




Sounds like you did it backwards.