Open circuit at first sign of trouble?

dive2dive2000 · 16th September 2005, 01:05

Oh how I have missed your Avatar

Martin

Steve · 16th September 2005, 03:06

Quote: (Originally Posted by decoweenie)

I would think that Gordon and Leon might be using the same breathing hose source.

If that's correct, then a KISS DSV fitted with the new Jetsam QD should fit just fine, if Stuart wanted it...

Just for info; the hoses aren’t the same ID. It is a really easy thing to adapt though and was one of the first things I did with my Meg. All that you have to do to fit a KISS DSV to a Meg is file the tabs off the quick disconnect cuffs on the DSV and it is a perfect fit. You will also have to change the flow direction.

Mdemon · 16th September 2005, 14:00

I have tried Open Loop a couple of times now at depth and also bailing to the OC/DSV. With min loop volume it still takes a few exhales/lung crush before the ADV fires as pointed out. What worries me is the WOB is soooooo hard on my ADV, I really can't help thinking that if I don't move quickly enough, if my breathing rate is very high then things are going to be very uncomfortable...

***EBT*** · 16th September 2005, 14:24

This ADV/WOB issue varies breather to breather. Personally I like my ADV to have an "edge" so I can feel it well before it fires, but this makes open loop a lot harder.

I guess this is where the bailout DSV has its strengths....

Drmike · 16th September 2005, 14:32

Quote: (Originally Posted by wreckweasel)

This ADV/WOB issue varies breather to breather. Personally I like my ADV to have an "edge" so I can feel it well before it fires, but this makes open loop a lot harder.

I guess this is where the bailout DSV has its strengths....

Quote: (Originally Posted by Drmike)

I had to bail off the loop to OC at 72m and guess what? No OC gas came from my stage!!! There was flow but not enough to survive on. When I got back on the boat the problem was found. The tank pillar valve was sticking. Although the valve was fully open and breathed fine on the surface (I always to a pre dive breathe), at 72m it was like sucking through a straw!

(The tank wasnt mine) Closing and opening the valve fully a few times cleared the problem. Took me back a bit having to go straight back to the loop Id just been forced off - hey whats a ppo2 of over 2 bar for a few mins

Was quite a shock when the DSV gave me practically nothing! Good lesson to learn though.

***EBT*** · 16th September 2005, 15:05

I didnt say anything at the time mike, but I was taught that you test your bailout as soon as you arrive at your target depth, to make sure it works where you're likely to need it.

Drmike · 16th September 2005, 15:18

Quote: (Originally Posted by wreckweasel)

I didnt say anything at the time mike, but I was taught that you test your bailout as soon as you arrive at your target depth, to make sure it works where you're likely to need it.

Thats just what I decided my new SOP would be. I always used to check my stages on the surface, but never at depth. After this incident I do both. Thats what I like about diving - theres something to learn/improve upon on/after every dive.

16th September 2005, 01:05	#91 (permalink)
dive2dive2000 PRISM DIVER & LUVIN IT! Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: Feb 2005 Location: Long Island, NY Posts: 796	Oh how I have missed your Avatar Martin
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16th September 2005, 03:06	#92 (permalink)
Steve Ladies bring a plate Current Rebreather/s: Megalodon Home Build Other Rebreather/s: Not Bought Yet Inspiration Classic Sport Kiss Classic Kiss MK 15.X Home Build Join Date: Feb 2005 Location: Perth - Australia Posts: 1,126	Quote: (Originally Posted by decoweenie) I would think that Gordon and Leon might be using the same breathing hose source. If that's correct, then a KISS DSV fitted with the new Jetsam QD should fit just fine, if Stuart wanted it... Just for info; the hoses aren’t the same ID. It is a really easy thing to adapt though and was one of the first things I did with my Meg. All that you have to do to fit a KISS DSV to a Meg is file the tabs off the quick disconnect cuffs on the DSV and it is a perfect fit. You will also have to change the flow direction. __________________ WARNING: I contain occasional coarse language, extreme sexual references, nudity, and adult themes, which may offend some people - Usually churchy types.
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16th September 2005, 14:00	#93 (permalink)
Mdemon SiegeEngine II Current Rebreather/s: Inspiration Classic Home Build Other Rebreather/s: Inspiration Classic Home Build Join Date: Feb 2007 Location: SWUK Posts: 1,946	I have tried Open Loop a couple of times now at depth and also bailing to the OC/DSV. With min loop volume it still takes a few exhales/lung crush before the ADV fires as pointed out. What worries me is the WOB is soooooo hard on my ADV, I really can't help thinking that if I don't move quickly enough, if my breathing rate is very high then things are going to be very uncomfortable... __________________ www.southwestmafia.com "small minds talk about people, Average Minds Talk About Events, GREAT MINDS TALK ABOUT IDEAS!" The WRONG Attitude will get you killed. "Once the agenda-monkeys and perfect-worlders have moved on, perhaps we can do some diving?"
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16th September 2005, 14:24	#94 (permalink)
*EBT* Apprentice Luddite Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Feb 2005 Location: UK, Brighton Posts: 2,110	This ADV/WOB issue varies breather to breather. Personally I like my ADV to have an "edge" so I can feel it well before it fires, but this makes open loop a lot harder. I guess this is where the bailout DSV has its strengths.... __________________ Eagles May Soar, but weasels don't get sucked into jet engines! RBW Terms of service
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16th September 2005, 14:32	#95 (permalink)
Drmike RBW Member Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,378	Quote: (Originally Posted by wreckweasel) This ADV/WOB issue varies breather to breather. Personally I like my ADV to have an "edge" so I can feel it well before it fires, but this makes open loop a lot harder. I guess this is where the bailout DSV has its strengths.... Quote: (Originally Posted by Drmike) I had to bail off the loop to OC at 72m and guess what? No OC gas came from my stage!!! There was flow but not enough to survive on. When I got back on the boat the problem was found. The tank pillar valve was sticking. Although the valve was fully open and breathed fine on the surface (I always to a pre dive breathe), at 72m it was like sucking through a straw! (The tank wasnt mine) Closing and opening the valve fully a few times cleared the problem. Took me back a bit having to go straight back to the loop Id just been forced off - hey whats a ppo2 of over 2 bar for a few mins Was quite a shock when the DSV gave me practically nothing! Good lesson to learn though. __________________ Cave diving is a sport Wreck diving is a sport Diving in general is a sport 'Rebreather diving' is not a sport its the delusional obsession with a highly dangerous and often inappropriate piece of equipment
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16th September 2005, 15:05	#96 (permalink)
*EBT* Apprentice Luddite Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Feb 2005 Location: UK, Brighton Posts: 2,110	I didnt say anything at the time mike, but I was taught that you test your bailout as soon as you arrive at your target depth, to make sure it works where you're likely to need it. __________________ Eagles May Soar, but weasels don't get sucked into jet engines! RBW Terms of service
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16th September 2005, 15:18	#97 (permalink)
Drmike RBW Member Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,378	Quote: (Originally Posted by wreckweasel) I didnt say anything at the time mike, but I was taught that you test your bailout as soon as you arrive at your target depth, to make sure it works where you're likely to need it. Thats just what I decided my new SOP would be. I always used to check my stages on the surface, but never at depth. After this incident I do both. Thats what I like about diving - theres something to learn/improve upon on/after every dive. __________________ Cave diving is a sport Wreck diving is a sport Diving in general is a sport 'Rebreather diving' is not a sport its the delusional obsession with a highly dangerous and often inappropriate piece of equipment
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