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>Greetings All > I am new on this list. I have been diving for 7 years in the northeast >and I am thinking about taking a nitrox course. Is it possible to use >air and nitrox in the same tank with the same regulator ? i.e. I >do a morning dive with nitrox and then go to the dive shop and drain >my tank and have it filled with normal air. I have heard that Nitrox is >more corrosive and requires silicone O rings and you can't switch back and >forth between the 2. Any info on this subject would be appreciated. Thank you. > For most fill stations, your tank must be O2 clean to get a Nitrox fill; filling it with regular compressed air thereafter will result in hydrocarbons getting in and your tank will no longer be O2 clean. YOu can use the same regulator as long as the O2 is not over 40% or so. Harold Gartner 6900 Via Alba Camarillo, California 93012 home: (805) 482-9743 office: (213) 487-6240 CompuServe ID# 71470,1423 Internet: hgartner@ra*.or*
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