Checking our TERRIBLE Tank Trim VLOG

Jonathan and Todd make fun of themselves while they discuss the challenges they have faced in trying to look good on camera with proper sidemount tank trim. Between all the possible combinations of suit buoyancy, tank buoyancy and rebreather/OC buoyancy, it's not a trivial problem for guys who rarely use the same configuration twice!
WARNING! THIS VIDEO IS FOR ENTERTAINMENT PURPOSES ONLY! THIS IS NOT INTENDED TO BE INSTRUCTIONAL. NEITHER OF THESE TWO GUYS ARE INSTRUCTORS!
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#sidemount #cavediving #scubadiving

[@DIVETALK]

HA! Don’t ask us! We’re learning from you! Another great episode guys! Thank you for tackling these important topics and making them easy to digest for divers and non-divers alike.

[@BlueWorldplus]

I'm not sure how important they are in the big scheme of things, but it's interesting to discuss!!

[@onestar76]

Instead of multiple d-rings you can also use sliding d-rings, which you can slide down each time you think it needs to be trimmed. Keeps a bit of clutter of your waist belt. But again a nice episode and I really like the honesty… no one is perfect and we can all learn and improve…

[@noambenmordechai]

You guys can't believe how important is it to share your experience and learning also throughout your mistakes Thank you very much❤

[@BlueWorldplus]

We are learning as we go, just like anyone! Nobody starts out perfect.

[@sunrisescubabz]

Blue world guys are humble and legit🎉💯

[@mr.minion976]

love the honesty and jokes. its always a great day to see a new video!!

[@SummersideDiver]

It’s awesome that you share these observations and experiences like this - we’re all learning, and when we can learn from each other it really helps us all. Thanks for sharing, educating, and entertaining us!

[@robertcavoli4351]

I feel your weight dilemma… I started off with wetsuit aluminum, then, wetsuit steel, then drysuit aluminum and steel, now into sidemount aluminum and steel, I dive the very hot summer, as well as under the ice, so undergarments can change dramatically, proper weight is definitely tricky… so I really appreciate your video… Thanks.

[@BlueWorldplus]

The average person--sometimes even divers who do not dive in a lot of different places--cannot fully appreciate how much difference there is in stuff like this! Whenever I'm diving in a drysuit, which requires more weight due to the undergarment, I prefer steel tanks. But generally when I'm diving sidemount in a wetsuit, I like the aluminums because the steels are just too heavy.

[@nitroxsam66]

The often used Luxfer aluminum S80: -1.4# at 3000 psi and +4.4# empty, both including the valve.

[@kenmh7357]

Cenote diving in Mexico is awesome!

[@BlueWorldplus]

Certainly is!

[@isaac7701]

Glad you guys have no egos lol

[@DD-sw1dd]

Anyone that’s ever went to refill a gas canister for a grill/heater knows we’ll just how much heavier those things are once they are full of propane.

[@BlueWorldplus]

Propane is a little more extreme because it's actually a liquid in the tank, and it "boils off" as a gas when the valve is opened. So the difference between empty and full is more than a scuba tank, where the contents are always a gas.

[@Mrveescuba]

first of all well done to bring this out!! im one from others tha complaint on your vids about tank positioning!! 7:26 they do it all around the world and it is not extra D rings they included in every sm bcd and they called sliding D rings you can slide them back n forth to change the position...keep it up.

[@Ken-vl4wk]

Fantastic episode. Very helpful.

[@jasenanderson8534]

Love the honesty and laughing at your own mistakes. Haven't done side mount yet but definitely food for thought, the essential physics can definitely be applied for single or side mount for bouyancy issues around whatever other gear you're taking with you. Thanks for keeping it light and breezy.

[@prycenewberg3976]

So... funny story about tank buoyancy, not long after I got my OW cert, my dad (Dad's full cave certified) and I went out in the Atlantic for a couple dives. On the second dive of the day, I put on a wetsuit jacket (Not the lower, just the jacket) because I had gotten cold in the first dive. I didn't add any weights though, and by the end of the dive, I literally could not stay down. I had to swim down to stop from floating to the surface. And that's with an empty BCD. So that was how I learned about the power of an empty aluminum tank. lol

[@praevidere]

Learning a lot and shows me there’s hope!

[@chisaquaticvibe6524]

Great work!

[@nickadkins5679]

This is a great video. I recently switched from aluminum to steel tanks for sidemount... and now tank trim is a non-issue haha. My tanks get super floaty though if I use aluminums. It really is crazy.

[@BlueWorldplus]

Tell me about it!! 🤣

[@artwarentertainment]

sliding drings my guys! check out sumpuk!

[@coolsamawe]

If u dive at 1~25 temp water np 😍

[@Bierstadt54]

Haha! Love it! Good explanation, good things to think about when using rental tanks. I certainly had a few ugly dives when I first went to al80's after training with lp85's too. My lp112's also get floaty on the butt, so certainly not just a steel vs aluminum thing. We must never forget that as a sidemount diver, we are charged with the sacred task of looking cool.

[@BlueWorldplus]

LOL so true!!

[@jonquillen5300]

Lol you guys are the best!

[@johnmontgomery2735]

Sounds like a lot if note taking in your future

[@jannikflk9846]

its simple, heavy tanks need less trimming. so for aluminium that change, you need to trim as they move from negative to positive. get a sliding d ring sliding d-ring or multiple ones. you know if your tanks are trimmed if you can touch your butt without touching the tanks. height of the tankbands has to be the same as armpit to connection point., the rotation of band is to ensure they are tight to your body. move the tanks if you cant touch your butt, then ask your budy for a video and change, change change, you just have to figure out the optimal setup for you

[@pricediver]

Where is cameraman Tim ?

[@BlueWorldplus]

Cameraman Tim doesn't do sidemount or cave diving. But he is back soon in a new episode coming up!

[@Friendofsquirrel]

Based

[@FoundInTheRiverAndCaves]

Great video choice gentlemen. I’m sure the “trim nazis” were giving you some grief. Great stories and presentation of the issues. Keep it coming. You can also find neutral AL80 tanks that don’t have the same positive buoyancy issues as normal 80’s.

[@YouTube_user3333]

Steel LP 85 cu/ft is a 10.5Lt @ 3325 psi, weight is 12.2 kg + 4kg full, +1.2kg empty AL80 LP 77.4 cu/ft is an 11.1Lt @ 3000 psi (207 bar), weight is 14.2 kg and floaty AF when empty Wetsuit= aluminium tanks Drysuit= Steel tanks I only use steel, as I hate aluminium tank characteristics and the extra lead I need to use, the heavier weight of aluminium too

[@MikeDodds]

I just logged my 25th dive and I have found that the more I dive the less weight I need to achieve neutral buoyancy. Do you find that you reach a point that you “lock in” on your weight requirements?

[@BlueWorldplus]

Absolutely. With experience you will need less weight. But you will always need some.

[@c.s.s.s.tanedallof6007]

🎉🎉 ❤

[@ChrisShaferKTM]

Just wear your drysuit all the time and it gets a lot simpler…

[@BlueWorldplus]

That takes out one variable, true. But traveling with a drysuit is a lot of extra gear and not necessary when the water is 75° F.