I'm sorry, but having kept quiet so far I feel compelled to comment on the nonsense of 'BSAC train divers to breath down to their reserve then switch to reserver air supply' This is complete BS.....We are trained to surface with 50BAR of air in our tanks....Pony bottles are there as an emergency. Regards, Brian Mc -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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