gas list depth for first gas

[Davwardo]

Hi there

Probably a silly question but...

For the deco gases ( not first gas ) you set them as active AND also set the depth you want to switch to it in the ' change ' field.

For the First gas, the change field is defaulted to 0.

So for 25% NX backgas and 50% for deco ( where I want to switch at 21m ) I see:

G1 : * NX 25 in 0m
G2 : NX 50 in 21

Can you confirm this is correct. if so, how come the change is set to 0 forth back gas?

Cheers, Dave

[tiefunten]

That's correct. Don't know the reason for this change, but it makes sense as you are normally breathing the backgas right from the surface.

[Davwardo]

cheers!