Poseidon Xtreme on BOV??

***jradomski*** · 5th December 2007, 12:57

Quote: (Originally Posted by AndyP)

Hi,

The failer was on the first stage, to be more precise it was the diaphram that went bang.

I had a long look at it and decided it was a bit of stupid design. If you take it apart there is a ruberised cloth diaphram, behind that a metal cup. What happens is, you get a bit of corrosion on the metal cup which creates a sharp edge which wears into the diaphram. Turn them on and they go bang, don't half make you jump. I got to the point where I always carried a spare, and was nervous each time I turned them on. In the end I used to srip the first stage after every dive and dry the metal cup by hand, not something I want to go back to.

Paul, don't do it. Yes they are small and very light weight, but aside from the fact that nothing breaths as nicely except a very well tuned Apeks DST and XTX50 they are pants. And the Apeks works 99.999999999999999999% of the time.

The other big problem is in the second stage, the purge actuation is done by a very flimsy bit of metal which bends very easily and makes the reg free flow all the time.

They are great regs. but just not robust enough to be used in a unit like the rEvo. Aside from the fact that it is very nice to dive, the thing I most love about the unit is the fact that it is pretty much bullet proof. If you make a BOV using the XStream, sorry, but I won't buy one.

There are several nice small and good regs out there all of them without the Poseidon design issues.

Take care,

Andrew

Andrew I gues you fall into the hate camp.. As others have said you eithe rlove or hate poseidons.. Over the years I have found the poseidons were the most reliable regs I ever used.. I STILL use a poseidon 1st stage that I bought in 1990.. I have used and probably every brand out there.. The ones I use today are mostly poseidons and apeks,, the apeks is not by my choice just that alot of the rbs come with them... I have had multiple high pressure seat failures and/or ip creep on almost all my apeks regs even with regular service, my poseidon regs usually go for 2 or 3 years between service and have never had one fail.. The only problem I had with my poseidons (my oldest one) was getting parts for that first stage.. in the us parts were hard to get for a while, and the older versions this was especially true for..

for seconds I prefer the cyclon over the jetstreams, never liked the triton (servicing issues), and find the xtreme is a great second.. I have been using an xtreme on a divematics bov for about 2 years now..

AndyP · 5th December 2007, 13:10

Quote: (Originally Posted by jradomski)

Andrew I gues you fall into the hate camp.. As others have said you eithe rlove or hate poseidons.. Over the years I have found the poseidons were the most reliable regs I ever used.. I STILL use a poseidon 1st stage that I bought in 1990.. I have used and probably every brand out there.. The ones I use today are mostly poseidons and apeks,, the apeks is not by my choice just that alot of the rbs come with them... I have had multiple high pressure seat failures and/or ip creep on almost all my apeks regs even with regular service, my poseidon regs usually go for 2 or 3 years between service and have never had one fail.. The only problem I had with my poseidons (my oldest one) was getting parts for that first stage.. in the us parts were hard to get for a while, and the older versions this was especially true for..

for seconds I prefer the cyclon over the jetstreams, never liked the triton (servicing issues), and find the xtreme is a great second.. I have been using an xtreme on a divematics bov for about 2 years now..

I can't say that I hate them, but I can say I would not own them again. They are a great reg. I just found that they were too delicate for me. In truth, we all have good and bad experiences with kit. I have a number of Apeks regs. all DST first stages and various second stages. They are all bullet proof. I service them myself (occaisionally) which means they MUST be able to withstand total incompetance and still function.

When I first got the XStreams I truly loved them. From 10 to 100M the breathed exactly the same. Also, once you realised that the purge botton is not an on / off switch and was progressive. Depending on how hard you pushed it you could get more or less gas out. They just need to be looked after a lot better than I am prepared to do.

Cyclons are know to be as solid as a rock, Jetstreams, from what I have heard and be just as delicate as the XStreams.

Bottom line, don't hate them, just won't own them again myself.

Take care,

Andrew

Mark Chase · 5th December 2007, 14:07

I have to say when AndyP got the extremes he raved about them so much i nearly sold all my Apex regs and bought them His dislike only emerged when they kept going wrong.

I think the love them or hate them thing is more to do with the way the Poseidon's jet blast your tonsils with every breath. People who need big fast breaths love them because you can never out breath a Poseidon Extreme or Jet Stream. I was happy with the Apex TX50s i used to use but they were tunned (by me) to the edge of free flow so some other TXs i tried were no where near as nice.

ATB

Mark Chase

J. V. · 5th December 2007, 15:33

Quote:

(we make the adaptor part to standard hose)

Good solution (but not too large?)

Quote:

second stage: no special tools

Good news !

Quote:

... conc chance to use without problem... don't know: to see

Send me one, I'll test it in Le Bourget and Landenouze.

Quote:

the fact that the internal system uses a 'control valve' to open the main valve, makes that you can let it run perfect with a very small membrane.

I suppose it's more or less the same than the old JetStream. When it works, it works, sure, but when it freeflow... it really freeflow !
All my Pos' second (Jetstream, Cyclon, Triton) are in the far end of my house under (at least) 1 cm of dust. I use the firsts with other seconds, Scubapro, Apeks, Kirby, etc.

**Fun Under Pressure** · 6th December 2007, 18:39

I am happy with my poseidon. But i no longer have my tonsils . Poseidon has an upgrade kit for the first stages to avoiding the BANG problem.

Cheers Markku

Mark Chase · 6th December 2007, 21:14

Quote: (Originally Posted by Fun Under Pressure)

Poseidon has an upgrade kit for the first stages to avoiding the BANG problem.

Cheers Markku

ATB

Mark

fredrik · 6th December 2007, 22:30

Quote: (Originally Posted by paulraymaekers)

the idee is using only the second stage, and eventually only the internal part:
meaning:
using standard hose (we make the adaptor part to standard hose)
second stage: no special tools
... conc chance to use without problem... don't know: to see

the fact that the internal system uses a 'control valve' to open the main valve, makes that you can let it run perfect with a very small membrane.

paul

You need 2 special tools for the internal parts but maybe you can make those yourself. Depending how you design your house you may also need a third "tool" to see if the pilot valve are ok.

paulraymaekers · 7th December 2007, 07:55

Quote: (Originally Posted by fredrik)

You need 2 special tools for the internal parts but maybe you can make those yourself. Depending how you design your house you may also need a third "tool" to see if the pilot valve are ok.

yes?? I opened it this weekend... in my kitchen, did not have any special tools at home
only did not open the pilot valve, but I did not try hard :-)

perhaps I missed something

regards

paul

**Fun Under Pressure** · 7th December 2007, 09:07

Quote: (Originally Posted by Mark Chase)

ATB

Mark

Or something like that

Cheers Markku

fredrik · 9th December 2007, 13:19

Quote: (Originally Posted by paulraymaekers)

yes?? I opened it this weekend... in my kitchen, did not have any special tools at home
only did not open the pilot valve, but I did not try hard :-)

perhaps I missed something

regards

paul

OK, then you don´t seem to need the the special tools. (Because I got the special tools, I have never tried without them.)
The pilot valve is not to be opend, it´s a spare part all together.

5th December 2007, 12:57	#31 (permalink)
*jradomski* Moderator Current Rebreather/s: Inspiration Classic Sport Kiss Optima rEvo Other CCR Home Build Other Rebreather/s: Inspiration Vision Evolution Megalodon Classic Kiss rEvo Other CCR Home Build Join Date: Mar 2005 Location: "Da" Bronx Posts: 3,011	Re: Poseidon Xtreme on BOV?? Quote: (Originally Posted by AndyP) Hi, The failer was on the first stage, to be more precise it was the diaphram that went bang. I had a long look at it and decided it was a bit of stupid design. If you take it apart there is a ruberised cloth diaphram, behind that a metal cup. What happens is, you get a bit of corrosion on the metal cup which creates a sharp edge which wears into the diaphram. Turn them on and they go bang, don't half make you jump. I got to the point where I always carried a spare, and was nervous each time I turned them on. In the end I used to srip the first stage after every dive and dry the metal cup by hand, not something I want to go back to. Paul, don't do it. Yes they are small and very light weight, but aside from the fact that nothing breaths as nicely except a very well tuned Apeks DST and XTX50 they are pants. And the Apeks works 99.999999999999999999% of the time. The other big problem is in the second stage, the purge actuation is done by a very flimsy bit of metal which bends very easily and makes the reg free flow all the time. They are great regs. but just not robust enough to be used in a unit like the rEvo. Aside from the fact that it is very nice to dive, the thing I most love about the unit is the fact that it is pretty much bullet proof. If you make a BOV using the XStream, sorry, but I won't buy one. There are several nice small and good regs out there all of them without the Poseidon design issues. Take care, Andrew Andrew I gues you fall into the hate camp.. As others have said you eithe rlove or hate poseidons.. Over the years I have found the poseidons were the most reliable regs I ever used.. I STILL use a poseidon 1st stage that I bought in 1990.. I have used and probably every brand out there.. The ones I use today are mostly poseidons and apeks,, the apeks is not by my choice just that alot of the rbs come with them... I have had multiple high pressure seat failures and/or ip creep on almost all my apeks regs even with regular service, my poseidon regs usually go for 2 or 3 years between service and have never had one fail.. The only problem I had with my poseidons (my oldest one) was getting parts for that first stage.. in the us parts were hard to get for a while, and the older versions this was especially true for.. for seconds I prefer the cyclon over the jetstreams, never liked the triton (servicing issues), and find the xtreme is a great second.. I have been using an xtreme on a divematics bov for about 2 years now.. __________________ Joe Radomski CCR Trimix Instructor Trainer ANDI Instructor Trainer Director #10 All posts are personal opinions and DO NOT reflect any affiliated agency unless specifically stated.
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5th December 2007, 13:10	#32 (permalink)
AndyP Mutter Grumble Groan Moan Current Rebreather/s: Inspiration Classic rEvo Other Rebreather/s: rEvo Join Date: Feb 2005 Location: UK Posts: 93	Re: Poseidon Xtreme on BOV?? Quote: (Originally Posted by jradomski) Andrew I gues you fall into the hate camp.. As others have said you eithe rlove or hate poseidons.. Over the years I have found the poseidons were the most reliable regs I ever used.. I STILL use a poseidon 1st stage that I bought in 1990.. I have used and probably every brand out there.. The ones I use today are mostly poseidons and apeks,, the apeks is not by my choice just that alot of the rbs come with them... I have had multiple high pressure seat failures and/or ip creep on almost all my apeks regs even with regular service, my poseidon regs usually go for 2 or 3 years between service and have never had one fail.. The only problem I had with my poseidons (my oldest one) was getting parts for that first stage.. in the us parts were hard to get for a while, and the older versions this was especially true for.. for seconds I prefer the cyclon over the jetstreams, never liked the triton (servicing issues), and find the xtreme is a great second.. I have been using an xtreme on a divematics bov for about 2 years now.. I can't say that I hate them, but I can say I would not own them again. They are a great reg. I just found that they were too delicate for me. In truth, we all have good and bad experiences with kit. I have a number of Apeks regs. all DST first stages and various second stages. They are all bullet proof. I service them myself (occaisionally) which means they MUST be able to withstand total incompetance and still function. When I first got the XStreams I truly loved them. From 10 to 100M the breathed exactly the same. Also, once you realised that the purge botton is not an on / off switch and was progressive. Depending on how hard you pushed it you could get more or less gas out. They just need to be looked after a lot better than I am prepared to do. Cyclons are know to be as solid as a rock, Jetstreams, from what I have heard and be just as delicate as the XStreams. Bottom line, don't hate them, just won't own them again myself. Take care, Andrew
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5th December 2007, 14:07	#33 (permalink)
Mark Chase I go down for ages Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Jan 2005 Location: Kent Posts: 2,700	Re: Poseidon Xtreme on BOV?? I have to say when AndyP got the extremes he raved about them so much i nearly sold all my Apex regs and bought them His dislike only emerged when they kept going wrong. I think the love them or hate them thing is more to do with the way the Poseidon's jet blast your tonsils with every breath. People who need big fast breaths love them because you can never out breath a Poseidon Extreme or Jet Stream. I was happy with the Apex TX50s i used to use but they were tunned (by me) to the edge of free flow so some other TXs i tried were no where near as nice. ATB Mark Chase __________________ Is it supposed to make that noise ? I took my unit to the dive shop and demanded they bolt on every thing that would fit. Join my elite diving teem and get a Tshirt "Doing It Chasey"Hammerhead Eccr Advanced Diving System
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5th December 2007, 15:33	#34 (permalink)
J. V. Custom Title Allowed! Current Rebreather/s: rEvo Other Rebreather/s: Not Bought Yet rEvo Join Date: Mar 2006 Location: Lot & Savoie Posts: 239	Re: Poseidon Xtreme on BOV?? Quote: (we make the adaptor part to standard hose) Good solution (but not too large?) Quote: second stage: no special tools Good news ! Quote: ... conc chance to use without problem... don't know: to see Send me one, I'll test it in Le Bourget and Landenouze. Quote: the fact that the internal system uses a 'control valve' to open the main valve, makes that you can let it run perfect with a very small membrane. I suppose it's more or less the same than the old JetStream. When it works, it works, sure, but when it freeflow... it really freeflow ! All my Pos' second (Jetstream, Cyclon, Triton) are in the far end of my house under (at least) 1 cm of dust. I use the firsts with other seconds, Scubapro, Apeks, Kirby, etc. __________________ -------------------- Jacques NPSFQQA-EDS IT # 007 (remué non agité) Last edited by J. V. : 6th December 2007 at 08:12.
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6th December 2007, 18:39	#35 (permalink)
Fun Under Pressure Supporting Member Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Join Date: Nov 2006 Location: Germany Posts: 700	Re: Poseidon Xtreme on BOV?? I am happy with my poseidon. But i no longer have my tonsils . Poseidon has an upgrade kit for the first stages to avoiding the BANG problem. Cheers Markku
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6th December 2007, 21:14	#36 (permalink)
Mark Chase I go down for ages Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Jan 2005 Location: Kent Posts: 2,700	Re: Poseidon Xtreme on BOV?? Quote: (Originally Posted by Fun Under Pressure) Poseidon has an upgrade kit for the first stages to avoiding the BANG problem. Cheers Markku ATB Mark __________________ Is it supposed to make that noise ? I took my unit to the dive shop and demanded they bolt on every thing that would fit. Join my elite diving teem and get a Tshirt "Doing It Chasey"Hammerhead Eccr Advanced Diving System
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6th December 2007, 22:30	#37 (permalink)
fredrik Rekodeko. Sweden Current Rebreather/s: Classic Kiss Other CCR Other Rebreather/s: Other CCR Join Date: Apr 2005 Location: Sweden Posts: 184	Re: Poseidon Xtreme on BOV?? Quote: (Originally Posted by paulraymaekers) the idee is using only the second stage, and eventually only the internal part: meaning: using standard hose (we make the adaptor part to standard hose) second stage: no special tools ... conc chance to use without problem... don't know: to see the fact that the internal system uses a 'control valve' to open the main valve, makes that you can let it run perfect with a very small membrane. paul You need 2 special tools for the internal parts but maybe you can make those yourself. Depending how you design your house you may also need a third "tool" to see if the pilot valve are ok. __________________ Fredrik Rekodeko, Sweden http://www.rekodeko.se
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7th December 2007, 07:55	#38 (permalink)
paulraymaekers rEvo's daddy Current Rebreather/s: rEvo Other CCR Home Build Other Rebreather/s: rEvo Other CCR Home Build Join Date: May 2005 Location: belgium Posts: 1,508	Re: Poseidon Xtreme on BOV?? Quote: (Originally Posted by fredrik) You need 2 special tools for the internal parts but maybe you can make those yourself. Depending how you design your house you may also need a third "tool" to see if the pilot valve are ok. yes?? I opened it this weekend... in my kitchen, did not have any special tools at home only did not open the pilot valve, but I did not try hard :-) perhaps I missed something regards paul __________________ www.rEvo-rebreathers.com .... the earth is flat, Elvis is alive, and radial scrubbers give longer dwell time than axials...
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7th December 2007, 09:07	#39 (permalink)
Fun Under Pressure Supporting Member Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Join Date: Nov 2006 Location: Germany Posts: 700	Re: Poseidon Xtreme on BOV?? Quote: (Originally Posted by Mark Chase) ATB Mark Or something like that Cheers Markku
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9th December 2007, 13:19	#40 (permalink)
fredrik Rekodeko. Sweden Current Rebreather/s: Classic Kiss Other CCR Other Rebreather/s: Other CCR Join Date: Apr 2005 Location: Sweden Posts: 184	Re: Poseidon Xtreme on BOV?? Quote: (Originally Posted by paulraymaekers) yes?? I opened it this weekend... in my kitchen, did not have any special tools at home only did not open the pilot valve, but I did not try hard :-) perhaps I missed something regards paul OK, then you don´t seem to need the the special tools. (Because I got the special tools, I have never tried without them.) The pilot valve is not to be opend, it´s a spare part all together. __________________ Fredrik Rekodeko, Sweden http://www.rekodeko.se Last edited by fredrik : 9th December 2007 at 13:24.
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