Twin 10L 300Bar or 12L 232Bar

[Enche]

Advice please. I have been diving in SE Asia for the last three years on alloy tanks either single or twins. I am now living in Germany and here they dive nearly always on steel. I was recently qualified IANTD Adv Rec Trimix and wish to go down the Tech route but I am having conflicting advice on what my twin set-up should be - twin 10l 300 Bar or twin 12l 232 Bar. I have been told I will have about an extra 8% more gas in 10l 300 Bar but it would weigh an extra 3.5Kg and they are about 7cm shorter. What would your advice be?

 

[Kern]

I'v used both, but went with 12 x 232 when I got my own. Weight, length, trim, the 12s were just more me.

Each to their own though, & there's nothing like trying out all the alternatives prior to parting with your hard earned.

 

[evil_xander]

I guess if you can try them both to see how they trim out, it would be the sanest thing to do.

I use 2x12 232 bar version, I have not much use for 300 bar tanks. And yes, you will have extra gas providing you can get them filled to 300 bar.

Also, the gas laws change a somewhat at pressures that high, just worth having that in mind, so getting 300 bar fills especially for trimix could be challenging depending on the location.

 

[Enche]

Kern and evil_xander - many thanks for your advice. I have had additional advice from other 'cold water' divers in the local area and I have decided to go for the 12l 232's.

Kindest regards.