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***diverklondike*** · 8th September 2006, 15:12

There is a way around it depending on what kind of premix nitrox your shop carries. It will eliminate the need to have your tanks 02 cleaned.... It's an old trick that I used in the OC days...

Start with 118 bar of He in the tank.

Add 100 bar of Nitrox 36 - Must be premixed

Top with 12 bar of air

The gas mixer in V-Planner supports playing with the numbers like this. You simply say that you want to do a trimix top off and start with 0% He in the mix. You could start with the nitrox in the bottle and top with He. It's just a bit harder on your booster.

Good Luck and Dive Safe

Mark

8th September 2006, 15:12	#6 (permalink)
*diverklondike* Moderator Current Rebreather/s: Inspiration Classic Other CCR Other Rebreather/s: Inspiration Classic Other CCR Join Date: Oct 2005 Location: Delaware, USA Posts: 1,560	Re: Not sure if I'm going mad but.... There is a way around it depending on what kind of premix nitrox your shop carries. It will eliminate the need to have your tanks 02 cleaned.... It's an old trick that I used in the OC days... Start with 118 bar of He in the tank. Add 100 bar of Nitrox 36 - Must be premixed Top with 12 bar of air The gas mixer in V-Planner supports playing with the numbers like this. You simply say that you want to do a trimix top off and start with 0% He in the mix. You could start with the nitrox in the bottle and top with He. It's just a bit harder on your booster. Good Luck and Dive Safe Mark
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