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> In a message dated 6/2/01 8:01:35 PM EST, ajmarve@op*.ne* writes: > > > The europeans have self inflating ones with refillable > > bottles, i have thought about them for a while now. > > Hi marv, I have a mental image of the old Scuba Pro CO2 cartridge attached to > a self sealed bag. I would think it would have to be a little bigger to > inflate from depth. What kind of bottle and system are they using? > Later > BOB Hi Bob, They have a small (100ml or 200ml options) "crack bottle", very similar to the 400-500ml bail out bottles you see on certain stab jackets (e.g. The AP-Valves Buddy Commandos that are so common here in the UK). You decant them directly from a normal cylinder. The bag has 20lb lift and is not completely sealed, but self-sealed as you suggested. Thus you can still fill the bag if you were dumb enough not to fill the bottle. A 100ml bottle charged to 200bar will (of course) fully inflate the bag at 12m or so. From any reasonable depth the smallest botle will put a great enough volume to get the bag moving. If, for some reason, you wish to send the bag up from any great depth, you can still do it the old fashioned way(s). I have never met anyone who had a problem with the seams on the AP-Valves lift bags splitting or the overpressure valve failing. As a poster mentioned a month or so ago, it is very common in the UK, when the current isn't strong, for people not to come up a crowded shot line, but to deploy DSMBs. They do make the whole process of shooting DSMBs extremely quick and you can easily perform a second task at the same time. Regards, Steven -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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