I am trying to get started doing some tri-mix and have found that the local gas supplier will not supply medical grade helium w/o a perscription. however, they said they will sell "ultra-pure" helium for like $72.00/T-Bottle. Is this pure enough ????????? -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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