My "new" independent doubles setup

[oya]

So I pointed out that this setup is patently absurd. And arguably dangerous.

While I lack the decades of experience of the person who invented this batty nonsense... I do have decades of experience. And, I'd safely venture, many more dives and bottom time despite my comparatively shorter age. Some of those dives spent pulling people wearing nonsense out of trouble as a buddy and some as a professional.

And my post got deleted.

I suppose saying, "Don't dive nonsense" is too negative?

 

[grantctobin]

So I pointed out that this setup is patently absurd. And arguably dangerous.

While I lack the decades of experience of the person who invented this batty nonsense... I do have decades of experience. And, I'd safely venture, many more dives and bottom time despite my comparatively shorter age. Some of those dives spent pulling people wearing nonsense out of trouble as a buddy and some as a professional.

And my post got deleted.

I suppose saying, "Don't dive nonsense" is too negative?

While I support all of what you state, your post was deleted by an overwrite of Scubaboard. Anything posted after 8am EST until late EST afternoon was wiped; not only those relating to this thread.

 

[rddvet]

Pretty much anything is safer than a rebreather.

I like your weird setup. I agree with some of the criticism people have offered and personally I will keep my standard manifold and regs. But if nobody ever tried diving innovative setups like this we would never see any progress. Clearly you put thought into it and developed a rig to serve your needs in a reasonable way. Let us know how it's worked out in the water after a bunch of dives!

should we assume you’ve never dove a rebreather? Based on that comment it would seem that way.

 

[oya]

While I support all of what you state, your post was deleted by an overwrite of Scubaboard. Anything posted after 8am EST until late EST afternoon was wiped; not only those relating to this thread.

Ah, I see, so no malicious editing nor censorship.

In that case...
The left post that can't be accessed by anyone at all during the dive in case of first-stage failure (and certainly not the diver wearing this... stuff)
The "manifolded" second stage which, as mentioned by several, is botched about by IPs
The dozens of additional failure points introduced by swivels on everything
Inline shutoffs that restrict breathing resistance and increase CO2 load even when they're open
The possibility of forgetting which is open and/or shut
The absurd argument of discomfort in removing a second stage (get comfortable changing regs... it's not rocket science)
The yokes (yeah, it's a small thing... but if you're gonna pretend to be a tech diver, at least buy DIN)
The fact that none of this gear was manufactured within the lifetime of most divers (Yeah, I have some old kit... but seriously... c'mon)

And that's just what I've got from the hip

Yeah... innovation is driven by blah-blah-blah
Yeah... it's nice to experiment and create

But all this, "If that's what you like, then you should totally dive it" gibberish is just bumf compared to actually performing safe dives. It's all well and good that it's worked out well until now. But what about tomorrow when it might not? And a potential rescuer hasn't got the first idea of what in samhill they're looking at?

 

[Gone for diving]

I think its pretty neat... maybe not what I would want, but I would have no problem diving it.
It's a double medium pressure hose regulator.
I think I would have run both lp hoses beside each other and had a tee with the valves on the RH... but I guess it might be a bit heavy on the jaw. And harder to operate the shutoff valves with thick gloves.

 

[OTF]

should we assume you’ve never dove a rebreather? Based on that comment it would seem that way.

Actually I do dive a bereaver. Should we assume you're a troll derailing this thread?

Ah, I see, so no malicious editing nor censorship.

In that case...
The left post that can't be accessed by anyone at all during the dive in case of first-stage failure (and certainly not the diver wearing this... stuff)
The "manifolded" second stage which, as mentioned by several, is botched about by IPs
The dozens of additional failure points introduced by swivels on everything
Inline shutoffs that restrict breathing resistance and increase CO2 load even when they're open
The possibility of forgetting which is open and/or shut
The absurd argument of discomfort in removing a second stage (get comfortable changing regs... it's not rocket science)
The yokes (yeah, it's a small thing... but if you're gonna pretend to be a tech diver, at least buy DIN)
The fact that none of this gear was manufactured within the lifetime of most divers (Yeah, I have some old kit... but seriously... c'mon)

And that's just what I've got from the hip

Yeah... innovation is driven by blah-blah-blah
Yeah... it's nice to experiment and create

But all this, "If that's what you like, then you should totally dive it" gibberish is just bumf compared to actually performing safe dives. It's all well and good that it's worked out well until now. But what about tomorrow when it might not? And a potential rescuer hasn't got the first idea of what in samhill they're looking at?

Do those shutoffs create that big a restriction? Aren't they designed to use on regs? I can't imagine them actually impacting work of breathing on open circuit.

The swivels=failure points is kinda true, but there's a lot of redundancy built in here for such an occasion. And the types of swivels he's using aren't the prime offenders for swivel failures.

 

[oya]

Do those shutoffs create that big a restriction?

Yes.

Aren't they designed to use on regs?

Yes.
For non-primary regs that are supposed to be turned off and forgotten about and not really supposed to be breathed through.

I can't imagine them actually impacting work of breathing on open circuit.

Breath through a high performance reg at 100ft/30M. Then breath through a complete POS at 100ft/30M. Now put one of those shutoffs on your high performance reg... and you've turned it into a POS.
Sure, the POS will deliver gas. But it will suck. Literally. And increase work of breathing and, consequently, CO2 loading.

the types of swivels he's using aren't the prime offenders for swivel failures.

More o-rings = more failure points. Doesn't matter if it's made by this brand or that brand or how many directions it swivels.

 

[Gone for diving]

More o-rings = more failure points.

I think we should get rid of all orings.
Steel on steel. Like JIC fittings (which I like). That would solve all the problems, there would never be an oring failure... maybe even some copper or ss tubing instead of hoses...

Oring failure rate is not that bad.
Usually they give you slow leak before it gets really bad. BCD And drysuit hose has way more chance of leaking then reg swivel on a normal hose... funny nobody complains about that oring and it's the same as a 90*

 

[oya]

More o-rings = more failure points.
Oring failure rate is not that bad.

There are some o-rings I buy by the literal hundreds. Well... to be fair... just the 003 for HP spools.

The LP hose o-rings I only buy by the dozens.

 

[Gone for diving]

Hope all those orings are not all for you
I assumed you own a shop or something...

What's your assembly procedure?
I always put lube in that connection...
Very rarely have problems.
only when not properly rinsed...