Average Gas Consumption

[Dan]

@scubadada I started to use SI units (bar, meter, kg, liter, etc.), instead of imperial unit (psi, feet, lb, cft, etc.), as most of my dive trips are in overseas. It would be a good reference if the horizontal axis of RMV vs # divers in the above chart is shown in two units (cfm & Lpm).

 

[scubadada]

@scubadada I started to use SI units (bar, meter, kg, liter, etc.), instead of imperial unit (psi, feet, lb, cft, etc.), as most of my dive trips are in overseas. It would be a good reference if the horizontal axis of RMV vs # divers in the above chart is shown in two units (cfm & Lpm).

Your wish is my command. I could not easily add the metric units to the Y-axis of my imperial graph, so I made a second graph. I have also updated the poll choices. This was a good idea. I will post them together in the future.

The median, mode, and weighted average are all 14.2-16.9 liters/min

 

[bradlw]

interesting. I haven't dove in a long time but went back and looked at my logbook. I fell solidly on the peak of that bell curve at approx 0.56 to 0.57....one more datapoint to help lock in that statistic!

 

[scubadada]

Here is the December 28 update with both the imperial and metric graph. I will post like this in future updates. Thanks @Dan

Median, mode, and weighted average 0.5-0.59 cu ft/min or 14.2-16.9 l/min

 

[jborg]

I'm far from reaching such extreme levels as @dumpsterpurrs, but I'm still seeing a downward slope and see some hope of reaching the illustrious 0.3-0.39/8.5-11.2 bracket at some point in my development.

However, I have reached the milestone of feeling safe that I'm most likely not going to be the limiting factor of any random dive group I might run into on vacation. Obviously, there are pros and cons to that, but as a newer diver it is more relaxing to know that I won't be the one ending the dive for running out of gas, and probably don't need to worry too much about my consumption along the way.

I realize I might get told off for this thought, that it's not a shame to be the highest gas consumer, that it's not something I should worry about anyway, etc., and I agree. Nonetheless, it's there.

 

[scubadada]

A month since the last update and another 1000 views, now over 37,000, and another 16 votes in the poll, now 628

Median, mode, and weighted average 0.5-0.59 cu ft/min or 14.2-16.9 l/min

If you have not voted in the poll, please consider doing so. If your average RMV has changed, please change your vote.

Good diving to all

 

[MBTS]

Typically around .55. Lower when I've been diving more frequently.

 

[wnissen]

Apparently, I have both above and below average consumption. At the end of a week in Cozumel this summer, with no wet suit, I was down to around 10 L/min. This weekend in Catalina, 8/7mm suit, hood, 3mm gloves, surge, current, etc., I was a bit over 20 L/min. In customary units, .35 to .75 ft.^3/min. So I encourage everyone to take the data here with a huge grain of salt.

 

[tursiops]

Apparently, I have both above and below average consumption. At the end of a week in Cozumel this summer, with no wet suit, I was down to around 10 L/min. This weekend in Catalina, 8/7mm suit, hood, 3mm gloves, surge, current, etc., I was a bit over 20 L/min. In customary units, .35 to .75 ft.^3/min. So I encourage everyone to take the data here with a huge grain of salt.

It is what it is....and that varies considerably with dive gear, water temps, and currents. No surprise.

 

[admikar]

Apparently, I have both above and below average consumption. At the end of a week in Cozumel this summer, with no wet suit, I was down to around 10 L/min. This weekend in Catalina, 8/7mm suit, hood, 3mm gloves, surge, current, etc., I was a bit over 20 L/min. In customary units, .35 to .75 ft.^3/min. So I encourage everyone to take the data here with a huge grain of salt.

That's why it's called average.