SCUBA Tank Buoyancy Full vs Empty, Steel vs Aluminum 

I can Vouch for the AL80 Buoyancy. When I did a Lake Cleanup I used my Aqua Lung Omni Custom BCD for the First time. Once I got there I found out Trim Pockets were Extra. Used a 7/5mm FS in 55F Water. Ok in the beginning of the dive. Got down to around 1500, Had trouble staying down. Hit about 1200, Floating with an Empty BCD. Went back to the shop 2 days later. Spoke to the Owner. Who was Surprised the Omni didn't include Trim Pockets for the $800 Cost. He sold me a set. Switched some of the Weights he sold me. I should be good now for the next Cleanup.

Thank you Ron, love your work mate.

Great video, simply explained 👏🏾 👌🏾

I love your experiments

I agree with fluffyhamster! I just completed my advanced open water cert. , and the instructors did not let me use my steel tanks. Just as it was proven in the video at about 1500 psi I was starting to float and had to fight to stay a depth. When it came time to do our deep dives they did not want an uncontrolled ascent I was so overweight if I stopped swimming I sank. 100 ft down this is not a pleasant situation to be in.

I use steel tanks, with a 6 pound tank weight for my back inflation bcd. Keeps me vertical on the surface.

Great video, but how does she allow her octo free flow for half of the video.

Nice experiment. Your rescue diver needs to secure her octopus.

I think you sacrifice the light weight of the aluminum anyways by using weights so that's cool I will just stick with steel.

Great video but the free flow octopus reg is so distracting.

hey ron

You got anew sub

This is why I don’t understand why 80 cubic feet Aluminium Tanks are so popular in the US and similar places! Is it because of lower price?? And they are not lighter because the material needs to be thicker, in order to cope with the pressure! So you end up with bulky annoying tanks in my opinion, and on top you need to add weight to the tanks, just to prevent them from floating in the end of the dive, which in itself is ridiculous in my opinion! Instead when doing recreational Dives for the masses, they should use 10 litres Steel tanks 230 Bar. (10x230 = 2300 litres of air) Or as in Europe and Scandinavia where they use 12 litres 230 Bar. (12x 230 Bar = 2760 litres of air. Smaller heavier tanks with higher pressure more air is the way to go, because the amount of air in an 80 cubic feet tanks is too low in my opinion, unless for a very shallow Dive.. And with steel Tanks you need far less weights, compared to the Aluminium 😉Tanks..

This is someone that knows what's he is talking about

Were they empty or full

tu est allé longtemps a l'école pour nous sortir cette vidéo >??? déjà, utilise le Bar, le Kilo et le centimètre, sort un peu de ton trou...

Better take care of your octopus 🤙