Doubles without a manifold

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So, by your definition, anyone who dives indie doubles is a "individual know-it-all"?

No.. that is you way of interpreting my text... :)

Shouldn't that be a pro ? Because most if not all people I know that tried (apart from the individual know-it-all) went and got doubles with manifolds in the end...

The individual know-it-all has to be part of the group in bold.

I do not know ALL people that tried. :wink:
 
Thats brilliant !! Ratchet straps ! What are the spacers that you've jammed between the tanks ? I love the riot of colours :D

It looks like old tin cans :). Hilarious!
 
It looks like old tin cans :). Hilarious!

Not just any aluminum cans, mind you ... beer cans. That home-made tank banger is an empty Heineken ...

... Bob (Grateful Diver)
 
I dive exclusively on manifolded twin but I understand the reasons on diving with Independent(done few dives before) or SM(never try).
Three different systems and nothing is perfect.
Just enjoy it.
 
even with independent doubles on your back, you still should be able to reach back and manipulate the valve. If thats tough then I'm with bob and gonna suggest sidemount as a more viable option. I have the same issue with a shoulder problem, couldn't reach the valves....switched to sidemount and all is well.

I've been diving ID's for a very long time. I use two 50's, 72's or 90's LP depending on the dive. My arms can't reach the valves on manifolds because of the injuries and ops on my shoulders.

You could consider inverting your cylinders. If you can scratch your arse you can reach the valves :)

invers11198.jpg

Inverted cylinders
 
It seems to me that the only advantage to ID is that you don't have to take them to the water individually by hand, but can carry them as a backpack. You lose the potential advantages of a manifold (isolated or not) and still have the disadvantages of carrying head-heavy tanks on your back, and having to be able to reach awkwardly placed valves to do shutdowns.

If I were going to dive independent doubles, I'd just go sidemount, where you can reach and see the valves. Of course, that might be a little more awkward on some dive boats, or with some entries.
 
The benefit is that you don't need to do valve shutdowns in order to preserve your reserve gas. Two completely separate systems. That's the advantage.

I'm also trying to see what is convoluted and unnecessary about that inverted set up? Seems fairly straight forward to me.
 
getting to that isolator is a neat trick.

Convoluted and unnecessary.

Did you actually read the article in the link, or did you just type in the knee-jerk comment? There's another article here which explains in some detail one diver's inverted twin setup and the reasons for their choices. I'm not suggesting it's the right setup for everyone, but it works for lots of people. It's not an uncommon configuration in the UK, and it was the standard Royal Navy setup (with some modifications) for many years.

Me, I dive a manifolded steel twinset with the valves at the top, and a hog looped reg, so I'm not on a crusade just suggesting alternatives.
 
https://www.shearwater.com/products/perdix-ai/

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