I'm going to try to get back to work, tomorrow. I got back from GAS conference and then got very, very sick and I'm still recovering. I have a bunch of emails left to answer, too (including yours, Andrew).
Anyway, I'll check with Wally tomorrow about what pressure he was running to get the consumption rate data. Remember that on tanks, you get your higher flow rates by increasing the line pressure. So, when you already have the needed flow like from a concentrator, you may not need that flow delivered at as high a pressure.
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Kimberly
working glass since 1990 - melting it on a torch since 2002
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