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<font color='#0000FF'>jw,
the drop in bar presssure in your cylinders between room temp and dive site is very small,however the issue tends to be having 232 bar in your cylinders at the compressor when they are filled and then 200 or so when its time to dive.
this is caused by the heat produced when your cylinders are filled and the warmer the air the higher bar pressure is shown but as the cylinder and fill cool and the air contracts the pressure in the cylinder falls and your down 30 bar.
so get your fills stick your cylinders in the boot go and have a wonder,then put a gauge on the cylinder when you get back and then take it back to the compressor to be topped off back to 232 bar.

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