>My >guess is that you will still be able to purchase gas, but it will be the >more expensive "medical grade" (as averse to balloon grade :)) helium or >you will just have to sign off on a liability waiver. Gas suppliers tend to be very rigid, cautious and unimaginative, and their default response to anything unfamiliar is "No". Walking in and telling them you want to breathe the stuff, deep underwater, is just asking for trouble. Anyone buying gas for mixing on a regular basis should equip themselves with a letterhead biz name, the more anonymous and less revealing the better. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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