Nitrox tables

[pilot fish]

undefined I'm reading the text book and dive tables for nitrox cert and am totally frustrated with its complexity. Since I will ONLY use my dive computer, and all dive boats require an hour surface interval, is all this stufff necessary?

 

[The Kraken]

What stuff specifically?
If you know your equivalent air depth, you can dive Nitrox and use air tables.

 

[El Orans]

Yes, it is necessary! What will you do when your computer fails and you don't know (the risks of) what you're doing...

BTW, welcome to the board!

Laurens

 

[The Kraken]

The one thing that is ABSOLUTELY IMPORTANT!!! is your PPO. 1.6 or over can get you very dead, very quick . . .

 

[pilot fish]

What stuff specifically?
If you know your equivalent air depth, you can dive Nitrox and use air tables.

hope I'm doing this correctly?

I just find using these tables, and being tested on it for cert, unnecessary when you are diving with a computer.

 

[pilot fish]

Yes, it is necessary! What will you do when your computer fails and you don't know (the risks of) whay you're doing...

BTW, welcome to the board!

Laurens

Thanks

I'm such a dunce when it comes to multiple dives using the tables. If my computer failed I would not dive.

 

[pilot fish]

The one thing that is ABSOLUTELY IMPORTANT!!! is your PPO. 1.6 or over can get you very dead, very quick . . .

Yes, that much I know from reading the book. Do not exceed 1.4, right, or 100% in 24 hrs?

 

[The Kraken]

That's why you're taught to use the tables. It would be a sad thing, indeed, if you were to spend a couple of thousand dollars for a dive trip and abandon it because your computer died.

You were taught to dive with an SPG and depth gauge, weren't you?

 

[pilot fish]

That's why you're taught to use the tables. It would be a sad thing, indeed, if you were to spend a couple of thousand dollars for a dive trip and abandon it because your computer died.

You were taught to dive with an SPG and depth gauge, weren't you?

I only dive with my computer, now have a back-up since I had a computer failure once. My computer tells me everything I need to know. Do you have one?

 

[El Orans]

Thanks

I'm such a dunce when it comes to multiple dives using the tables. If my computer failed I would not dive.

That's why I always plan my dives with the tables. I always use my computer but only as a backup. By the time it starts beeping I'm already on the boat/shore.
I've had occasions that my wife and I had both forgotten our computers and we didn't have a waterproof watch. Using the tables, I saw that If I stayed shallower than 12 meters I'd run out of air a lot quicker than the NDL would grant me. So, we had a great dive.

Lessons learned:
1) Knoweth thy tables
2) Bringeth thy computer