Quote: (Originally Posted by
graham_hk)
Why does it matter what gases you use? Not understanding any gas (even standard gases) is going to be give you problems. For example, breathing 18% at 20ft (6m) on an Rb80 is asking for trouble.
You've obviously not heard of the speedo valve fitted in the indoctrination port Graham, any non DIR mixes will instantly cause the loop to cease working
