Quote: (Originally Posted by
Genesis)
Ok guys, here's one for you to ponder....
Why do you have an oxygen pressure gauge on a hose on a CCR?
I can see the point to a diluent gauge that's accessible during the dive, because you might do mask clears, diluent flushes, etc.
But why an O2 gauge you can read? Your metabolic consumption is a relatively known figure, right? You don't go in without enough, right? So..... why?
To each his own, of course, but I'd much rather know what is available for both O2 and dil. Yes, metabolic is indered predictable, buy mother nature ain't. Hard swim against an unanticipated current? Is enough O2 left for deco? Are you doing O2 flushes @ 20 ft. Great, but did you get somewhat too aggressive w/ the flush and blow away some of the gas needed for deco? You get the idea.
Simply put, if all goes to plan a gauge is redundant. As the generals say, though, no battle plan survives beyond first contact with the enemy.
Best,
Ken