Poseidon Regulator Reliability…

[Henry Crick]

Poseidon Regulator reliability….


Have a set of Xstream regulators, serviced. 10 dives. The Din Stem o ring is shot… ship back to service centre. Replaced.4 more dives. Now it won’t even “regulate” (when you turn air on and the 1st stage try’s to balance basically)

Getting unbelievably fed up with them… they’ve spent more time apart this year then being used, and as I’m in a remote location for service options, every time I have a problem with them I have to send them off meaning I pay postage each way.

Now is there a trick to helping the 1st stage or 2nd stages to “regulate” on startup? As they are right now, they’re just blowing air out the second stage and annoying everyone at the dive site…

As I’ve been having trouble with them I’ve also had an idea… as the 1st stage provides the breathability to the 2nd stages… could I use a Poseidon 1st stage… a different branded second stage and still reap the benefits of breathability?


Thanks all,

H

 

[BoltSnap]

Poseidon Regulator reliability….


Have a set of Xstream regulators, serviced. 10 dives. The Din Stem o ring is shot… ship back to service centre. Replaced.4 more dives. Now it won’t even “regulate” (when you turn air on and the 1st stage try’s to balance basically)

Getting unbelievably fed up with them… they’ve spent more time apart this year then being used, and as I’m in a remote location for service options, every time I have a problem with them I have to send them off meaning I pay postage each way.

Now is there a trick to helping the 1st stage or 2nd stages to “regulate” on startup? As they are right now, they’re just blowing air out the second stage and annoying everyone at the dive site…

As I’ve been having trouble with them I’ve also had an idea… as the 1st stage provides the breathability to the 2nd stages… could I use a Poseidon 1st stage… a different branded second stage and still reap the benefits of breathability?


Thanks all,

H

Sell it and get a Scubapro or Atomic and never look back.

 

[iointerrupt]

One trick I use for Xstreams that don't want to 'start up' is to hold your finger over the mouth piece hole while opening the cylinder valve. Little bit of back-pressure helps them seal.

If they free-flow continuously on start up, then the 2nd stage just needs some tuning. Loosen the single screw (visible through the mouth piece hole), then screw the tip in 1/8th of a turn. Repeat until they behave.

 

[Henry Crick]

Sell it and get a Scubapro or Atomic and never look backi

I am a sucker for scubapro… all of my kit besides this is by them… how is the breathability of their regulators, it is really important to me as I find I use far less air on poseidons than other regulators due to their air delivery

 

[Henry Crick]

One trick I use for Xstreams that don't want to 'start up' is to hold your finger over the mouth piece hole while opening the cylinder valve. Little bit of back-pressure helps them seal.

If they free-flow continuously on start up, then the 2nd stage just needs some tuning. Loosen the single screw (visible through the mouth piece hole), then screw the tip in 1/8th of a turn. Repeat until they behave.

Will try this when I get a minute.. thanks a lot really appreciate it

 

[BoltSnap]

I am a sucker for scubapro… all of my kit besides this is by them… how is the breathability of their regulators, it is really important to me as I find I use far less air on poseidons than other regulators due to their air delivery

Excellent. S600, g260, c370 second stages are tops.
Atomic are even better.

 

[Henry Crick]

Excellent. S600, g260, c370 second stages are tops.
Atomic are even better.

Ok sounds good. I’ll look into some

 

[jadairiii]

Having had all Poseidons (Odins) years ago, I switched to Apeks. Never looked back. Sure the Odin's breathed great, but they were like owning a Ferrari, my Apeks (and any Scubapro) is like owning a Chevy Impala with a LS motor, awesome performance, and you dont have to touch them.

True story, my dive buddy, who is terrible with gear maintenance to begin with, stopped diving for a few years, he had old Apeks (Zeagle branded) and SP G250's. Starts diving again and takes them all out of storage, and no telling when they were serviced before they went into the storage boxes, SP's wouldnt work, the Apeks' breathed fine. Used them until he got the SP's overhauled.

 

[Frogman82]

You have just had bad luck. I have xstreams and love them. Ship them off to someone who knows how to service them, or do basic checks yourself if you feel comfortable to do so. Check IP at full tank pressure, it should be around 123 psi. Then you can adjust the second stage as described above.

 

[Nemrod]

Poseidon Regulator reliability….


Have a set of Xstream regulators, serviced. 10 dives. The Din Stem o ring is shot… ship back to service centre. Replaced.4 more dives. Now it won’t even “regulate” (when you turn air on and the 1st stage try’s to balance basically)

Getting unbelievably fed up with them… they’ve spent more time apart this year then being used, and as I’m in a remote location for service options, every time I have a problem with them I have to send them off meaning I pay postage each way.

Now is there a trick to helping the 1st stage or 2nd stages to “regulate” on startup? As they are right now, they’re just blowing air out the second stage and annoying everyone at the dive site…

As I’ve been having trouble with them I’ve also had an idea… as the 1st stage provides the breathability to the 2nd stages… could I use a Poseidon 1st stage… a different branded second stage and still reap the benefits of breathability?


Thanks all,

H

You have some misconceptions here. The first stage does not provide the "breathability" to the second stage user (that being you). The second stage is far more relevant to how the regulator will perform and feel to the user. All the first stage has to do is to reduce tank pressure to provide gas at the correct IP range (interstage or intermediate pressure) for the second stage. I think the IP is 124 psi +/- setting for the Jetstream and Xstream first stage.

Yes, the IP of your Poseidon first stage could be adjusted to support any number of more conventional second stages if you so desire.

The DIN O-ring is a wear item and you will need to learn how to service that yourself. IMO it is a negative of DIN systems that the sealing O-ring is contained to the first stage DIN fitting vs the cylinder valve but it is not a big deal and easy to replace.

The Jetstream and Xstream regulators are pilot valve assisted (air servo valve) and the mechanism is a "balloon" which must inflate when the tank valve is first turned on. This is why there is that (very) annoying rush of air when the system is first pressurized. As has been noted, place your thumb over the mouthpiece and turn the tank valve on quickly so that the system pressurizes and the flow should then stop. If it does not then the second stage needs some adjustment.