Helen Johnstone wrote: > > In UK (Europe?), green knobs = Nitrox. Some Nitrox fillers will only > fill tanks with Nitrox if they have green knobs. > Not sure about elsewhere in the world. Sounds like a good system you folks have over there. So what do you do, keep a pocket full of diffent colored valve knobs and swap out your knob color depending on what sort of fill you want? I like it. Regards, Kent -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send list subscription requests to `techdiver-request@aquanaut.com'.
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