Nitrox Advantages? Input Needed!

[fishchaser]

Do you mean two single tank dives, or you dive doubles?

Something to consider with all the extra bottom time you get with Nitrox is whether or not you can actually use it. Meaning, do you have enough tank volume to allow you to use all the bottom time that you're allowed?

To answer that, you'd need to know your RMV. I've calculated (poorly) my RMV for warm water and for cold water, 0.55 cu.ft./min (15.6 L/min) and 0.86 (24.5) respectively. At 60', with a 3000 PSI tank and finishing with 500 PSI, I'd have 43 minutes of air (or 28 minutes in cold water) in my 80 cu.ft. tank. At 100 feet, the 80 cf tank would run out in 30 minutes (19 minutes cold). (These numbers assume you are instantly at these depths, or at an average depth listed, so actual bottom times are not exactly correct.)

So, unless you dive doubles, you will not be able to get the bottom times listed in other posts in a single dive. But it would help in total bottom time vs. SI for repetitive dives.

Chad