Scuba stuff in thrift stores.
- Thread starter Hoomi
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Y'all think I should get another 6 & manifold them for doubles?
If you weren't advertising yourself as a warm water wimp I would suggest that the 6 could be used as an argon bottle.
Well, if I don't keep it, there's two bids in on it!
ams511
Contributor
I have to agree with Jim that nitrox should be discussed in a basic open water course so that beginning divers know at least what it is. After all it is common enough now that most divers will come across it.
Nitrox was discussed in our OW class.
The particulars of the legal issues concerning filling a bottle labeled, "Nitrox Only" with regular air, however, was likely considered more apt for the actual nitrox class.
The particulars of the legal issues concerning filling a bottle labeled, "Nitrox Only" with regular air, however, was likely considered more apt for the actual nitrox class.
ams511
Contributor
Nitrox is a mixture of air and oxygen. The advantages are a longer time under water and shortened surface intervals. The main disadvantage is that your maximium operating depth is generally lower than with air only. In a nitrox class they discuss at length oxygen toxcitiy. There is nothing wrong, illegal, or unethical about putting air in a nitrox tank as long as the air has been filtered to remove any trace oil from the compressor. Any dive shop that sells nitrox should have the special filtration equipment and can put air only in a nitrox tank. The tank will still be eligible to
be filled with nitrox at a latter date. If you put air from a compressor without the special filters then the tank cannot be filled with nitrox if using the partial fill method where pure oxygen is first added to the tank and then topped off with air. It must be O2 clean. If using banked (premixed) nitrox then the tank can still be filled with nitrox as long as the contamination is not heavy (i.e. bad air). In the past most dive shops used partial blending which required O2 cleaned tanks now I think most use banked nitrox (at least in South Florida) so it is not necessary. Most new regs and and tanks can handle recreational blends of nitrox (up to 36% oxygen) without O2 cleaning. If you go beyond that both tanks and regs may require O2 cleaning.
I took the TDI nitrox course and from what I remember is consisted of a few class sessions discussing diving physiology, use of nitrox tables, and testing the level of oxygen in the tank. There was also 2 optional nitrox dives. I am not sure if it changed.
be filled with nitrox at a latter date. If you put air from a compressor without the special filters then the tank cannot be filled with nitrox if using the partial fill method where pure oxygen is first added to the tank and then topped off with air. It must be O2 clean. If using banked (premixed) nitrox then the tank can still be filled with nitrox as long as the contamination is not heavy (i.e. bad air). In the past most dive shops used partial blending which required O2 cleaned tanks now I think most use banked nitrox (at least in South Florida) so it is not necessary. Most new regs and and tanks can handle recreational blends of nitrox (up to 36% oxygen) without O2 cleaning. If you go beyond that both tanks and regs may require O2 cleaning.
I took the TDI nitrox course and from what I remember is consisted of a few class sessions discussing diving physiology, use of nitrox tables, and testing the level of oxygen in the tank. There was also 2 optional nitrox dives. I am not sure if it changed.
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