Cyber_Ghost
Registered
Here's the thing, I've done BSAC nitrox certification, and was taught to plan the dives and mixes so that the mix will get richer with each repetitive dive, with depth becoming shallower (as taught in most cases).
Yesterday, while getting my gear ready for a set of 2 dives, was told by an ANDI instructor that according to ANDY the richer mix should be used for the first, deeper dive, and the percentage should decrease with the dive order.
Today it was a dive to 30m, then a dive to 18m. I had 2 cylinders, one a 12L with air, the other 10L with EAN36. Did the first dive on nitrox, the second on air. (amount of air for the deeper dive played the decisive factor here).
So, how do you guys plan your dives and mixes?
What are the reasons for choosing a richer mix for the last dive?
Yesterday, while getting my gear ready for a set of 2 dives, was told by an ANDI instructor that according to ANDY the richer mix should be used for the first, deeper dive, and the percentage should decrease with the dive order.
Today it was a dive to 30m, then a dive to 18m. I had 2 cylinders, one a 12L with air, the other 10L with EAN36. Did the first dive on nitrox, the second on air. (amount of air for the deeper dive played the decisive factor here).
So, how do you guys plan your dives and mixes?
What are the reasons for choosing a richer mix for the last dive?