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DB>A computer failure on a deco stop dive isn't nearly that easy in that vital information about your deco obligation went away with the computer. Perhaps one day there will be a computer with an independent, redundant system that can fix this properly. There are other issues as well. SB> I can't speak to the "other issues"", but this one is a non-problem. Simply take a second computer. And remember, there may be no significant difference between the failure rate of dive computers and the failure rate of the electronic depth gauges / bottom timers commonly used in technical diving. Scott, The rub here is the gas changes. The Nitrex (I think that was the name) computer needs to be told about each gas change. IMO doing this on two computers during a dive is a bit much. Two computers in the same case, (but independent pressure housings) operated by a double set of switches might fill the bill. Make no mistake, I _really_ like the display on my Oceanic but I have been screwed by electronic devices too often to bet my life on one. The digital depth guages can be backed up with your reel and bottom timers can be backed up with your watch. It's also pretty easy to find a home for an extra watch or an extra depth guage (like maybe on your buddy). Since you don't need to look at these devices until the primary fails, they can be stashed away. Not so with a computer that must be informed of gas changes. There are some watches out there that can give you depth, so there's a possible backup to backup. The fact that I'm paranoid doesn't mean these devices aren't out to get me. :) SB>Take care and safe diving Same to ya -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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