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The Artist formerly known as 'Kirky'
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Just had a thought

If I get a nitrox fill in my twinset I will need to personally verify the contents by testing. Question is, do I test both tanks individually (my choice) or will one tank test represent both tanks. Also are the tanks filled individually or both at a time with the manifold open??
 

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They obviously should be filled with the manifold open but I suppose someone could make a mistake, although why a guy trained to fill tanks would close an already open manifold to fill is beyond me, but hey, I've been suprised many a time in the past..

So one tank should represent both but you raise an interesting point, mistakes are made and accidents do happen.. has anyone ever come across the problem of someone not filling correctly and should one test from both pillar valves
 

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2 plugs Parker
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Straight after filling you will find they read different. The gases need a good stir up. I always find I get my most accurate readings when I get to the dive site and the twins have been layed down in the back of the car.

Ali
 
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