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Imagine that you are in an overhead environment and you are out of air. Your buddy just happens to have the long hose coming off the left post. You grab his reg cause you're out of air. As you're swimming out he happens to roll off the left post which you are breathing. If this happens in a restriction, it could be impossible to turn around or let you buddy know about the roll off. Now consider the same situation with the long hose coming off the right post. When the roll off occurs, the donor knows immediately since he is breathing the short hose off the left post. The donor simply turns on the left knob and continues. If there is no air sharing emergency the diver can still easily tell if the left post has rolled off. First off, anytime your valves make contact with the ceiling, you should check them. If you check your SPG twice and notice that the same pressure is showing, just reach up and turn the valve on. ss On Mon, 13 Aug 2001, ricky@th*.ca* wrote: > Hey folks! While surfing today I came across this wealth of knowledge and, of course, signed up immediately. > > I'm hoping to gather some opinion on a confusion I have with the DIR reg and spg configuration (please be kind... DIR configuration is new to me - I currently bungy the 7' hose and breathe off the short hose - but I am looking at alternatives (always!)): > > DIR tells us to wrap the 7' hose from the right post around our bodies and to breathe off of that 2nd. DIR tells us to use the reg from the left post (on the short hose) as our alternate. Finally, DIR tells us to put the spg on the left post (I think). > > If the above DIR configuration is correct - is it not possible to have a situation where you're diving in an overhead environment and the left post gets rolled off? In this event, since there is no depressurization of the reg on the left post the spg would continue to read a misleadingly high pressure. This strikes me as a "bad thing". > > Thoughts, > Rick... > > -------------------------------------------------------------------- > Mail2Web - Check your email from the web at > http://www.mail2web.com/ . > > -- > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. > -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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