Best twin tank for not tall guy ?

[sharko108]

Hi guys !
I can't really find the answer. I'm planning to maybe purchase a twin tank as i'll probably need my own tanks for Belgian carries and around (i'm living in Paris)
Sorry by advance , i tried to understand your US equivalent but it's more about pressure than volume i think so i will stick to volume tank name just to be sure
Choice would be between twin 10L vs twin 12L, but this is not really about volume or weight but height tank, around 10cm différences between two . I'm 1m71/72 (5ft7-8?)
For now i only dove 3 Times in June with twin 12 (with wet suit and pony) and it seems it was kinda too long for me , resting on my butt, pushing it down and so wasn't confortable for frog kicking. And i couldn't really rise it ip as i was already touching with my head , i was always looking at the bottom lol
So i was thinking about twin 10L to have a little more compact/smaller tanks on my back.
I'm diving again twin 12 on sunday and see if it's better or not , maybe by changing wing position but might only knock my head..

If some divers , with same height would have an opinion , just let me know please
Have a good day

 

[BoltSnap]

Good morning,


Greetings from Tripoli in Libya!


The first step is to work with an instructor or dive buddy who has experience diving with doubles. Secondly, if you are going to use 10-litre tanks, make sure you use the standard length ones and not the short, stubby ones.

Question: Are you planning to do technical diving with a double tank rig, or will you be using it for recreational diving? It's better to consult a local expert in diving with doubles than to rely solely on information from the internet.

 

[MB NZ]

I can't ever remember a cylinder hitting my butt, but... Standard Faber 10L are pretty stubby and are difficult to trim in my experience, being top heavy. Eurocylinders are better. If you don't want 12L, then consider 8.5L if they are big enough.

 

[lizardland]

5'8" doesn't seem particularly unusual. Average height for a man in the UK is 5'9" and most divers here use standard Faber 12's with no issues. I've had ex girlfriends who were 5'5 or less and dived twin 12's perfectly happily. My cave instructor was 4'11 and used the equivalent of twin 18's.

I'd look at doing more diving in twin 12's before making a decision. They're the most common twinset in the UK, nobody really seems to have a problem so I think this may be just unfamiliarity. I'd try to get used to them first.

I've borrowed short Faber twin 10's and they are easily the worst set I've ever dived in. They are far too short for comfort. You can't sit down in them because the base is about 6 inches off the ground so all the weight is on your back all the time. They are a pain to get on and off. They killed my back in the water too. I'm 5'11" and I doubt they would be any better for someone who is 5'8".

Short 12's are even worse. They are like dustbins.

Personally, the longer the better for me. I used to dive in twin 20's and they were the best set I've ever used underwater. Weigh a ton on the surface but in the water they are really comfortable.

 

[sharko108]

Good morning,


Greetings from Tripoli in Libya!


The first step is to work with an instructor or dive buddy who has experience diving with doubles. Secondly, if you are going to use 10-litre tanks, make sure you use the standard length ones and not the short, stubby ones.

Question: Are you planning to do technical diving with a double tank rig, or will you be using it for recreational diving? It's better to consult a local expert in diving with doubles than to rely solely on information from the internet.

Yes it will be for some tec lights for now , down to 60m with deco , no trimix

I can't ever remember a cylinder hitting my butt, but... Standard Faber 10L are pretty stubby and are difficult to trim in my experience, being top heavy. Eurocylinders are better. If you don't want 12L, then consider 8.5L if they are big enough.

8.5 will be too small volumes.. tha'ts also why i asked about 2x10L , i dont want any difficulty with trim too

5'8" doesn't seem particularly unusual. Average height for a man in the UK is 5'9" and most divers here use standard Faber 12's with no issues. I've had ex girlfriends who were 5'5 or less and dived twin 12's perfectly happily. My cave instructor was 4'11 and used the equivalent of twin 18's.

I'd look at doing more diving in twin 12's before making a decision. They're the most common twinset in the UK, nobody really seems to have a problem so I think this may be just unfamiliarity. I'd try to get used to them first.

I've borrowed short Faber twin 10's and they are easily the worst set I've ever dived in. They are far too short for comfort. You can't sit down in them because the base is about 6 inches off the ground so all the weight is on your back all the time. They are a pain to get on and off. They killed my back in the water too. I'm 5'11" and I doubt they would be any better for someone who is 5'8".

Short 12's are even worse. They are like dustbins.

Personally, the longer the better for me. I used to dive in twin 20's and they were the best set I've ever used underwater. Weigh a ton on the surface but in the water they are really comfortable.

Thanks yes of course that's why this week end i'm going to do 2 more dives with 2x12 and see how it goes, i will try to adjust again the wing too . I've read before about that issue when sitting but it's kinda same height as single 15L isn't? Just need some squat to get on/off twin 10 height seems to be around 60-61cm (just bottles)

 

[sharko108]

This is when i tried the twin 12 (guy on my left is with twin 10)

 

[paddydiver]

I have these. I'm about 5'8. Love them, very comfortable, great trim.

 

[Redtwo]

I'm 1.70m and have no problems with a double 12.
I have never dove with a double 10, but People say D12 is much better trim wise.

 

[sharko108]

I have these. I'm about 5'8. Love them, very comfortable, great trim.

Ok so no problem with trim or anything like people said above?
If i go for double 10 , i'll have to think also about 232 or 300b

I'm 1.70m and have no problems with a double 12.
I have never dove with a double 10, but People say D12 is much better trim wise.

Nice to know thanks , i'll try again with double 12. Maybe people saying that are tall people?
Don't you find twin 12 too much on your butt? Perhaps it's also depending of the plate/wing (i'm using Xdeep)

 

[paddydiver]

Unless you're doing dives where you really really need that much back gas, I wouldn't bother with 300 bar tanks. They have plenty of their own drawbacks.