On Thu, 17 Apr 1997, bdi@wh*.ne* wrote: How do I explain the bright green knobs? ----------------------------------------- Thank you to everyone who offered help and advice on this vexing issue. Unfortunately no-one came up with the ONLY answer that will satisfy the original design criteria. It is, of course: The knobs will change colour automatically to indicate the hydrocarbon content of the gas they contain Thank you all for playing. Next week: Why Nitrox Stickers Should Be Applied To The Inside Of Your Tanks. rgrds billyw -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send list subscription requests to `techdiver-request@aquanaut.com'.
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