Cyclon 5000 or Jetstream

[donooo]

I've been looking at regulators for over a year. Then I found this Forum last month. I want to buy a Poseidon regulator, but I'am having a problem finding the "facts". The pros and cons of the Cyclon Vs Jetstream. I've read, I've asked, I've listened, very little help out there.

Would some of you Poseidon fans help ? Or even regulator experts. I'am a little beat up on sales pitches.

thanks donooo

 

[Mverick]

Cold water? Tropical water?.
What do you want to do with it.
Recreational diving? Technical Diving?

Are you set on a poseidon. They are good regs but need someone who knows how to adjust them to work well. Kinda finicky. Have a high intermediary pressure also.
For tech diving you would want to be able to take the front cover off underwater. Can't realisticly do that with a Poseidon.
I'd suggest an Apeks TX 100 or a ScubaPro Mk20/G250. These are the ones I know of. Apeks TX50 or TX40 are also great regs. I'm sure there are others out there too.

 

[donooo]

I guess I tried to keep the question kinda simple.

The Pro's and Con's of the Cyclon 5000 Vs the Jetstream.

Doesn't matter where I'am diving or what I'am doing.

They aren't the same, right ?



donooo

 

[Mverick]

Jetstream is upstream and delivers 1800ltr/min

Cyklon is downstream and delivers 1000ltr/min

Triton is both and delivers 1300ltr/min


It kinda does matter what your doing. Working at greater depth would demand more air. Leading to a jetstream since it would provide more air. Using trimix in a technical enviroment would lead you back to your choice of either one. Since it's a less dense gas. Both would flow better. Jetstream would still flow more air though.
Such as in a cold enviroment. If your ice diving you'd want to get the sealing kit for the first stage.

 

[Lost Yooper]

I own the Odin (jet Stream) and can't stand it. I use it as a back up to my Zeagle. I own it for only one reason: it doesn't freeze. I find the mouthpiece to be too big, the bubbles in my face, expensive to fix, it's finicky, free flows if the tank pressure gets too low (around 300psi), and IF it fails, it will do so in the closed position (won't give you air -- hasn't failed me yet). The only good thing I can say about them is they don't freeze, otherwise they suck. In fact, mine if currently for sale and has only been used as a back up for L. Superior diving.

Good luck.

Mike

 

[donooo]

OK, so the Jetstream gives you a "LOT" more air. So that's why people try them. Then either love em or hate em.

Nothing extreme about the Cyclon, a more "normal" regulator. So as it has nothing special to offer. Not so many people willing to try and deal with the potential problems. I guess the main problem is expense of service.

Once you get them tuned the way you like them, do they stay tuned ? Or is it a constant tuning process? The people that don't like em, is that cuz they didn't get them set up right?

Any upsides besides cold water and breathing upside down ?

TNX donOOO

 

[Conch]

I've been diving Poseidons for 23 years. Hate to say it but Odins were only a dream back then. Started with the Cykon 300 which had to have imperial adapters to use standard hoses, which was a pain in the butt. Don't know where everyone is getting the idea that Odins and Jetsteams are running at high intermediate pressures. They run at 145 PSI MAX (and that is according to their standards) The older Cykon 300 runs 181 psi Max and the Cyklon 5000 is 174 psi.

Don't know bout the rest of you but I prefer a reg to stop working rather than freeflow. Bye Bye gas (and in copious quantities if it happens at depth). At least when it shuts off you can go to another reg without losing lots of gas. Ever try to breath off a freeflowing reg at depth, in very cold water? Good luck trying to get feeling back in your face let alone freezing your teeth and gums.

Yeah they are ... or ...were expensive to maintain. I've seen the price list from OMS ... very reasonable now. But I always worked on my own (yes, I'm certified to do it, just wish i could have ever got my diploma from Searious Fun for it) I found the biggest problem is people who haven't got a clue about them work on them and wonder why they don't work, or, flutter in shallow water. Even had one come in with the "condom" insideout. Go figure.

Al

For the record: Still have 6 Poseidons, 7 Apeks, and lots of scubapros.... and no they aren't for sale..... but if ya got any....??? ehehehe

 

[buff]

There is one man who can put all this to rest:Rainreg.....where is he when you need him??

I own a Jetstream. It is without a doubt the most tried and true cold water regulator on the market....the purge might blow your head off but it won't freeze. The Jetstream is the only regulator that meets the U.S. Navy's criteria for a cold water regulator. Having said that I do believe the U.K. Navy uses Apeks and they have some cold water there too.
Some divers hate the Jetstream for the following reasons: 1. They have VIOLENT purges that can knock loose fillings out. 2. They are of an "upstream" design that if a failure does occur(which there has never been a documented failure) the air stops flowing. On this point I side with "Conch" I would rather have my gas stop flowing than freeflow at 1200 L/min in ice cold water....that presents some very difficult breathing challenges. But if the gas stops flowing at least you can switch to another reg like Conch says. 3. They tend to breathe a little wet(no cotton mouth here!!!!!!) 4. They can be finiky to maintain...if someone doesn't know how to do it. 5. They have "mechanical" "fluttery" feel during inhalation in shallow water...like "opening a trap door"
The reason divers like them: 1.THEY DON'T FREEZE!!!!!!!! and I personaly like the mouthpiece(it's big.. like my mouth) and that they disperse bubbles to the side(for photos) and you don't get that downward "pull" from the second stage out of your mouth like most regulators. And you can breathe them in any position.....which is stupid if you're just going to hang upside down(do people really hang upside down that much underwater???) but critical if you hand it(or get it yanked out of your mouth) to someone to buddy breathe.

My wife has an Apeks TX50, and loves it. We swapped regulators while in Bonaire. The only thing she noticed was that the Jeststream breathed "a little wet" but she said she got used to it. If you ARE NOT going to dive in ice cold water then don't get a Jeststream....I would get an Apeks TX50-they are excellent cold water regulators and are VERY smooth upon inhalation....that's why I got my wife a TX50-just in case my Jeststream is in the shop I can use her regulator(she will not ice dive!!). And you don't have to worry about finding someone to service an Apeks...But, if you find the need to dive in ice cubes you cannot find a better ice regulator than the Jetstream...

 

[Lost Yooper]

Since most free flows happen as a trickle and get worse, I prefer them since I can isolate that reg and switch to a back up while still being able to breath off the free flow. Then wait for a little bit to see if it will thaw out, turn it back on and hopefully use it. Having a reg quit cold turkey at 160'+ doesn't impress me. I can deal with a free flow better than a dead reg and maybe even continue the dive. I have heard of Posiedons quiting, but neither I nor my buddies have had it happen.
Posiedons have their place -- really cold water -- but otherwise I don't care for them. Apex seems to have it figured out.

Mike

 

[Green_Manelishi]

remembering 'way back when' the Cyklon300 was "the reg"
to have I have a few questions for those more technically
oriented than I:

1) does there not come a point where the flow rate exceeds
human ability to utilize? if so, what point in a reg
that will? (like a 'puter processor that spends MOST of
its time waiting for the nitwit at the keyboard to
type something ;-)

2) if your reg free flows, shut the valve down. we go back
to number one. if it is a case of "even in those few
seconds ..." if the flow rate is that extreme, cut it
back a bit.

thanks for hearing me out. comments?