Quote:
the sonic depth is not an absolute limit under wich you will not have o2 anymore, it is more subtile then that, it can be exceeded.
personly I use an hydrogom with 11 bars for 0.8 lt/mn and dive it down to 65-70 m and I have never noticed any need for injecting manualy more often.
Sure. As you know, with my IDA and my first rEvo, IP around 11 bar, I often dove up to 110 m. Yes, at 110 m there is no flow, no O2 manual injection, so what, there is alway manual dil injection.
To dive deeper, we have made a special batch of rEvo with IP around 14.5 bar, which extand dive possibility up to145 m, and make it easy in the 100/120 m range.