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Hans,

It seems that you are right on track here. If one is going to be doing a
lot of fills they need a gas booster for both high pressure transfer and
gas scavanging when those bottles get low.

Hey George -- whats been the investment the WKPP has made for thier gas
mixing systems ? ...

Joel Silverstein
http://www.NitroxDiver.com


Hans Petter Roverud wrote:

> A general rule of thumb in Norway is twice the price of an air fill.
> Moneywise that comes out as about $ 12 for a double 80. Since wages
> and
> general cost of living vary it might be better to say, for the
> consumer with
> an average income it costs between one and two hours net pay.
>
> Nitrox is not really about the cost of oxygen -- it's about the cost
> of
> filters, precision gauges, analyzer and most of all, handling, mixing
> and
> verification. Thus, we don't raise the price with increasing FO2. The
> only
> exceptions are very rich deco mixes. Since most of us do partial
> pressure
> blending without a booster, from 50/50 to pure oxygen take the top of
> our
> storage tanks really fast. Since we're looking for a booster this may
> change, yet it means another multi-K investment. In any event, the
> price of
> oxygen is a minor cost compared to investments and labor costs.
>
> Trimix is different. In this case the price of gas (helium) is a
> considerable price factor. Since European helium comes shipped in from
>
> Algeria it's pretty expensive. Thus, trimix goes by volume of helium
> in the
> mix.
>
> regards,
>
> Hans
> Norway



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