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> I did a trimix course with Kevin Gurr earlier on this year. Diving with the > isolator shut to "save gas" certainly was not part of the course. However, > on the way back from a dive he did mention that on a short dive, diving > with, say, twin 15L cylinders he would have the isolator shut. He would then > only have to dump and refill 15L instead of 30L. Is this really so bad? If > he had a problem It takes a second to reach behind and open the isolator. > What kind of problem could occur ? 1. Emty bottle ? So what. Switch to the secondary regulator. And/Or open the isolator. 2. Second stage failure ? So what. Switch to the secondary regulator, close the valve to the bad regulator and open the isolator. 3. First stage failure ? So what. Switch to the secodary regulator, close the valve to the bad stage and open the isolator 4. Broken HP gauge or hose ? So what. Switch to the secodary regulator, close the valve with the bad hose and the isolator prevent loosing gas. 5. Broken LP inflator or hose. So what. Switch to the secodanry regulator, close the valve with bad hose/inflator and the isolator prevent loosing gas. Maybe I'm way out on this one. Flame me if you like, but what can possibly be wrong with this. Atle Aamodt -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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