Poseidon Deep 2nd stages on an Inspiration

[Ivon]

Does anyone know if it is possible to run Poseidon Deeps off the standard Apeks regs on the unit for bail out?

I was told there was not enough flow to run them but have spoke to some one else running cyclones and wanted to know if i can run the Deeps.

Thanks

Ivon

[Simon A]

Ivon,
I understand you've done MOD1 since I spoke to you when you'd just picked up your YBOD at stoney? (since then I've given it and sourced myself a YBOD as well!)
AFAIK the Cyclons run at an Interstage Pressure (IP) of about 9.5 bar which is what an Apeks 1st stage is set to "out of the box" But the X stream range require an IP of over 12 bar.
Page 64 of the inspo manual (downloadable from AP Diving) states :- DIluent 1st Stage Interstage Pressure: 9.2-9.5 bar. The interstage pressure of the Diluent cylinder may be altered to suit the open circuit 2nd stage fitted - maximum pressure - 13 Bar.
So the answer is yes, but you'll need to fiddle with the IP, I'd also recomend not taking the IP above 12.5 bar, as you're very close to running out of compression on the spring at those sort of IP's (and when you run out of compression you end up with the IP exactly the same as the cylinder pressure!)

HTH
Simon A

[Simon A]

Ivon,
I understand you've done MOD1 since I spoke to you when you'd just picked up your YBOD at stoney. (since then I've given it and sourced myself a YBOD as well!)
AFAIK the Cyclons run at an Interstage Pressure (IP) of about 9.5 bar which is what an Apeks 1st stage is set to "out of the box" But the X stream range require an IP of over 12 bar.
Page 64 of the inspo manual (downloadable from AP Diving) states :- DIluent 1st Stage Interstage Pressure: 9.2-9.5 bar. The interstage pressure of the Diluent cylinder may be altered to suit the open circuit 2nd stage fitted - maximum pressure - 13 Bar.
So the answer is yes, but you'll need to fiddle with the IP, I'd also recomend not taking the IP above 12.5 bar, as you're very close to running out of compression on the spring at those sort of IP's (and when you run out of compression you end up with the IP exactly the same as the cylinder pressure! Which in someone elses words:- will result in nonpassive self disassembly!)

HTH
Simon A

[Ivon]

Originally Posted by Simon A

Ivon,
I understand you've done MOD1 since I spoke to you when you'd just picked up your YBOD at stoney. (since then I've given it and sourced myself a YBOD as well!)
AFAIK the Cyclons run at an Interstage Pressure (IP) of about 9.5 bar which is what an Apeks 1st stage is set to "out of the box" But the X stream range require an IP of over 12 bar.
Page 64 of the inspo manual (downloadable from AP Diving) states :- DIluent 1st Stage Interstage Pressure: 9.2-9.5 bar. The interstage pressure of the Diluent cylinder may be altered to suit the open circuit 2nd stage fitted - maximum pressure - 13 Bar.
So the answer is yes, but you'll need to fiddle with the IP, I'd also recomend not taking the IP above 12.5 bar, as you're very close to running out of compression on the spring at those sort of IP's (and when you run out of compression you end up with the IP exactly the same as the cylinder pressure! Which in someone elses words:- will result in nonpassive self disassembly!)

HTH
Simon A

Thanks Simon, just about to start it now so I'll see how it goes.

Welcome to the yellow side, have you done any training yet?

Keep us posted on how you get on, does not take long before your tinkering

Ivon

[Simon A]

Originally Posted by Ivon

Welcome to the yellow side, have you done any training yet?

Er, No, there's a small matter of £600 worth of bits to turn it back into a diveable YBOD! Then I'll actualy have something to take the training on!

Simon A

[Ken]

Originally Posted by Ivon

Does anyone know if it is possible to run Poseidon Deeps off the standard Apeks regs on the unit for bail out?

I was told there was not enough flow to run them but have spoke to some one else running cyclones and wanted to know if i can run the Deeps.

Thanks

Ivon

Question.If you are running this Poseidon second stage off the dil.as a quick necklace style bailout will you be able to put a flow stop onto it? If for some reason it free flows it would run your dil. out of gas pretty quick.

I'd say stay with a conventional, non-upstream design that can incorporate something like an Apek flow stop. Ken

[Ivon]

Originally Posted by Ken

Question.If you are running this Poseidon second stage off the dil.as a quick necklace style bailout will you be able to put a flow stop onto it? If for some reason it free flows it would run your dil. out of gas pretty quick.

I'd say stay with a conventional, non-upstream design that can incorporate something like an Apek flow stop. Ken

Yes you can fit a flow stop, its also known as the Dil cylinder knob

Also you wont forget that your flow stop is closed at that all important o bugger moment.

I'll also set up a GC system so i can add Dill from a stage and maybe O2 but am undecided about that yet.

Ivon

[Ken]

Originally Posted by Ivon

Yes you can fit a flow stop, its also known as the Dil cylinder knob

Also you wont forget that your flow stop is closed at that all important o bugger moment.

I'll also set up a GC system so i can add Dill from a stage and maybe O2 but am undecided about that yet.

Ivon

Having a redundant dil. and plumbing that into a manifold would certainly resolve that issue of having to closing the dil. knob, but adds more external hoses and such. Personally, I see way too many RB/wreck guys with dangling bits of hardware. My point is that using the Poseidons as a necklace based bailout reg. may not be the best choice you have out there.

[mixdiver]

Why do you want to run your unit like this? why not have an outboard cylinder mounted on the case rather than relying on the single 3l dil cylinder. Better still carry a 7l sidemount that can be used either as Dil or a bailout


Rgds

Mixdiver

[Ivon]

Originally Posted by mixdiver

Why do you want to run your unit like this? why not have an outboard cylinder mounted on the case rather than relying on the single 3l dil cylinder. Better still carry a 7l sidemount that can be used either as Dil or a bailout


Rgds

Mixdiver

I will be having a 7l with me as well with a reg on and a hose to conect to dil and for lift bags, but the one around my neck will be for sanity breaths and if i have to give my stage away or at worst case lose the gas in it and have to go oc.

I run the suit off a 1.5 that is mounted on the side of the unit so minimal gas is used from the dil cylinder.

Ivon