Solenoid stuck open! No Problem With This

Gobfish1 · 10th February 2008, 18:21

i wont say it hard to do or should be a simple if you practice ,,,

it would just worry me to know i have some thing in my o2 / life line that can turn its self of if it rubs up against my kit ,,, i find that v worrying ,,,

i have seen it happen, i know of two divers that never made it home , all i want to say is if them slide valves were not on said divers kit thay may have made it home ,,,

its a bad move ,,, , just my thinking ,, there are better ways to do what you want ,,,

Muzz · 10th February 2008, 18:45

Quote: (Originally Posted by Shaunzxr)

I've been told running a Rebreather by opening and closing the cylinder valve is very very hard.

Yes its another failure point.

You haven't practiced a stuck open solenoid drill? What are you going to do when (and I mean when, not if) it happens to you? The failure point is not having been taught the skill.

Shaunzxr · 10th February 2008, 19:51

Quote: (Originally Posted by Muzz)

You haven't practiced a stuck open solenoid drill? What are you going to do when (and I mean when, not if) it happens to you? The failure point is not having been taught the skill.

Yes I did it on my mod 1, 3 years ago, and practiced it since then. Normally between 20-30m with no problem
I was told on an 80m dive with all the deco, holding onto a reel, its much harder than manual injection.

On this drill the setpoint is raised to 1.6 ( on an Inspo )

The solenoid is then open and the O2 is controlled by opening and closing of the cylinder valve

The only problem with this drill is once 1.6 is reached the solenoid is closed by the computer making you think how good you are at keeping it from spiking

In reality you could crack open the valve, thinking how easy it was on your mod 1 and S$"t youself when you see it go to 2.5

**Dsix36** · 10th February 2008, 20:22

Quote: (Originally Posted by Gobfish1)

i wont say it hard to do or should be a simple if you practice ,,,

it would just worry me to know i have some thing in my o2 / life line that can turn its self of if it rubs up against my kit ,,, i find that v worrying ,,,

i have seen it happen, i know of two divers that never made it home , all i want to say is if them slide valves were not on said divers kit thay may have made it home ,,,

its a bad move ,,, , just my thinking ,, there are better ways to do what you want ,,,

This is not an attempt to belittle those divers but:
KNOW THINE PO2 - maybe this would have kept them alive too?

,

diverreb · 10th February 2008, 20:30

Basically like everyone says, it's a simple shut-off valve put inline on your O2 hose that is routed to the Solenoid.

I use one. It's my preference is to have the quickest way to cut off O2 I can in the event of flood of O2 from an open Solenoid issue.

Again, there is no right or wrong here.... Just personal preference.

If you decide to use one you must make sure that a) It's easy to get to and b) you can cut it off quickly.

The M & J shut offs can be fairly stiff and I wasn't able to shut it down easily with heavy gloves on. I had to reverse it and I now have it in front of an M & J swivel (used for routing purposes) but it also makes it simple to use as a leverage point... It rests against my palm, and a simple pull back with my thumb & forefinger on the valve barrel shuts it down.

My shoulders aren't among the most limber, and just using the manual inflator on the lung to inject O2 is a lot less stressful and a lot more comfortable than cracking the valve to control the O2.

Richie

**Dsix36** · 10th February 2008, 20:32

OK, my 2 cents on this subject is really simple.

Yes it can be considered another failure point but it will make manual flying easier.

Having flown by the O2 tank valve and by the manual inject button, it is my opinion that using the manual button is by far the easiest way to maintain setpoint. It is definitely far superior in maintaining the SP accurately.

If you can use this shut-off valve on the O2 line feeding the solenoid then flying manually is simplified.

I have jumped in and had my O2 tank rolled off on the boat. Obviously my instructor did a decent job training me, because it was almost instinct to check valves when SP was dropping and solenoid was firing.

I know that there are pros and cons to use/notuse of this valve, but it can be a help if task loading becomes an issue. I wanna keep it easy.

Shaunzxr · 10th February 2008, 20:38

Quote: (Originally Posted by Dsix36)

OK, my 2 cents on this subject is really simple.

Yes it can be considered another failure point but it will make manual flying easier.

Having flown by the O2 tank valve and by the manual inject button, it is my opinion that using the manual button is by far the easiest way to maintain setpoint. It is definitely far superior in maintaining the SP accurately.

If you can use this shut-off valve on the O2 line feeding the solenoid then flying manually is simplified.

I have jumped in and had my O2 tank rolled off on the boat. Obviously my instructor did a decent job training me, because it was almost instinct to check valves when SP was dropping and solenoid was firing.

I know that there are pros and cons to use/notuse of this valve, but it can be a help if task loading becomes an issue. I wanna keep it easy.

Just what i was told and agree with. It should be placed where it cannot be closed by error. But easily checked if theres a concern.

Gobfish1 · 10th February 2008, 20:51

Quote: (Originally Posted by Dsix36)

This is not an attempt to belittle those divers but:
KNOW THINE PO2 - maybe this would have kept them alive too?

,

take my word on this one, the slide valve in the link is shite ,,

ant got a thing to do with what your breathing ,,,

you said you rolled your cylinder valves to off ,, so would you think its ok to have a slide valve on your main life line , the name alone says it all,,

***EBT*** · 10th February 2008, 20:56

Quote: (Originally Posted by lizardland)

It's a piece of piss as long as you can reach the cylinder valve.

So easy, its rumoured you can finish the entire dive and exit the cave in front of your buddy this way, without him even noticing it

Shaunzxr · 10th February 2008, 21:03

Quote: (Originally Posted by nigelh)

Duuhh....
I seem to remember doing most of a dive in that mode at the end of mod 1.
I thought that was a standard drill.

Yes I did it on my mod 1, 3 years ago, and practiced it since then. Normally between 20-30m with no problem
I was told on an 80m dive with all the deco, holding onto a reel, its much harder than manual injection.

On this drill, the setpoint is raised to 1.6 ( on an Inspo )

The solenoid is then open and the O2 is controlled by opening and closing of the cylinder valve

The only problem with this drill is once 1.6 is reached the solenoid is closed by the computer making you think how good you are at keeping it from spiking

In reality you could crack open the valve, thinking how easy it was on your mod 1 and S$"t youself when you see it go to 2.5

10th February 2008, 18:21	#11 (permalink)
Gobfish1 Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Join Date: Apr 2005 Location: Manchester UK Posts: 370	Re: Solenoid stuck open! No Problem With This i wont say it hard to do or should be a simple if you practice ,,, it would just worry me to know i have some thing in my o2 / life line that can turn its self of if it rubs up against my kit ,,, i find that v worrying ,,, i have seen it happen, i know of two divers that never made it home , all i want to say is if them slide valves were not on said divers kit thay may have made it home ,,, its a bad move ,,, , just my thinking ,, there are better ways to do what you want ,,, __________________ Steve G Apparently not the only gay diver in the village http://drinkingliberally.org/blogs/o...nzee-glock.gif http://www.scubatunes.com/audio/vol01/mp3/HiTech.mp3 Last edited by Gobfish1 : 10th February 2008 at 18:28.
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10th February 2008, 18:45	#12 (permalink)
Muzz New Member Current Rebreather/s: Megalodon Optima Other Rebreather/s: Join Date: Mar 2005 Location: Pompano Beach FL Posts: 130	Re: Solenoid stuck open! No Problem With This Quote: (Originally Posted by Shaunzxr) I've been told running a Rebreather by opening and closing the cylinder valve is very very hard. Yes its another failure point. You haven't practiced a stuck open solenoid drill? What are you going to do when (and I mean when, not if) it happens to you? The failure point is not having been taught the skill.
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10th February 2008, 19:51	#13 (permalink)
Shaunzxr Inspo Luver Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Apr 2005 Location: UK, midlands Posts: 87	Re: Solenoid stuck open! No Problem With This Quote: (Originally Posted by Muzz) You haven't practiced a stuck open solenoid drill? What are you going to do when (and I mean when, not if) it happens to you? The failure point is not having been taught the skill. Yes I did it on my mod 1, 3 years ago, and practiced it since then. Normally between 20-30m with no problem I was told on an 80m dive with all the deco, holding onto a reel, its much harder than manual injection. On this drill the setpoint is raised to 1.6 ( on an Inspo ) The solenoid is then open and the O2 is controlled by opening and closing of the cylinder valve The only problem with this drill is once 1.6 is reached the solenoid is closed by the computer making you think how good you are at keeping it from spiking In reality you could crack open the valve, thinking how easy it was on your mod 1 and S$"t youself when you see it go to 2.5 Last edited by Shaunzxr : 10th February 2008 at 20:43.
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10th February 2008, 20:22	#14 (permalink)
Dsix36 Going Down? Current Rebreather/s: Optima Other Rebreather/s: Join Date: Aug 2007 Location: Deerfield Beach, Florida Posts: 976	Re: Solenoid stuck open! No Problem With This Quote: (Originally Posted by Gobfish1) i wont say it hard to do or should be a simple if you practice ,,, it would just worry me to know i have some thing in my o2 / life line that can turn its self of if it rubs up against my kit ,,, i find that v worrying ,,, i have seen it happen, i know of two divers that never made it home , all i want to say is if them slide valves were not on said divers kit thay may have made it home ,,, its a bad move ,,, , just my thinking ,, there are better ways to do what you want ,,, This is not an attempt to belittle those divers but: KNOW THINE PO2 - maybe this would have kept them alive too? , __________________ THE MORE THAT I LEARN, THE MORE THAT I STILL NEED TO LEARN!!!!!!
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10th February 2008, 20:30	#15 (permalink)
diverreb DE/MD/NJ Wreck Diver Current Rebreather/s: Optima Other Rebreather/s: Join Date: Mar 2007 Location: Dover, DE Posts: 568	Re: Solenoid stuck open! No Problem With This Basically like everyone says, it's a simple shut-off valve put inline on your O2 hose that is routed to the Solenoid. I use one. It's my preference is to have the quickest way to cut off O2 I can in the event of flood of O2 from an open Solenoid issue. Again, there is no right or wrong here.... Just personal preference. If you decide to use one you must make sure that a) It's easy to get to and b) you can cut it off quickly. The M & J shut offs can be fairly stiff and I wasn't able to shut it down easily with heavy gloves on. I had to reverse it and I now have it in front of an M & J swivel (used for routing purposes) but it also makes it simple to use as a leverage point... It rests against my palm, and a simple pull back with my thumb & forefinger on the valve barrel shuts it down. My shoulders aren't among the most limber, and just using the manual inflator on the lung to inject O2 is a lot less stressful and a lot more comfortable than cracking the valve to control the O2. Richie
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10th February 2008, 20:32	#16 (permalink)
Dsix36 Going Down? Current Rebreather/s: Optima Other Rebreather/s: Join Date: Aug 2007 Location: Deerfield Beach, Florida Posts: 976	Re: Solenoid stuck open! No Problem With This OK, my 2 cents on this subject is really simple. Yes it can be considered another failure point but it will make manual flying easier. Having flown by the O2 tank valve and by the manual inject button, it is my opinion that using the manual button is by far the easiest way to maintain setpoint. It is definitely far superior in maintaining the SP accurately. If you can use this shut-off valve on the O2 line feeding the solenoid then flying manually is simplified. I have jumped in and had my O2 tank rolled off on the boat. Obviously my instructor did a decent job training me, because it was almost instinct to check valves when SP was dropping and solenoid was firing. I know that there are pros and cons to use/notuse of this valve, but it can be a help if task loading becomes an issue. I wanna keep it easy. __________________ THE MORE THAT I LEARN, THE MORE THAT I STILL NEED TO LEARN!!!!!!
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10th February 2008, 20:38	#17 (permalink)
Shaunzxr Inspo Luver Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Apr 2005 Location: UK, midlands Posts: 87	Re: Solenoid stuck open! No Problem With This Quote: (Originally Posted by Dsix36) OK, my 2 cents on this subject is really simple. Yes it can be considered another failure point but it will make manual flying easier. Having flown by the O2 tank valve and by the manual inject button, it is my opinion that using the manual button is by far the easiest way to maintain setpoint. It is definitely far superior in maintaining the SP accurately. If you can use this shut-off valve on the O2 line feeding the solenoid then flying manually is simplified. I have jumped in and had my O2 tank rolled off on the boat. Obviously my instructor did a decent job training me, because it was almost instinct to check valves when SP was dropping and solenoid was firing. I know that there are pros and cons to use/notuse of this valve, but it can be a help if task loading becomes an issue. I wanna keep it easy. Just what i was told and agree with. It should be placed where it cannot be closed by error. But easily checked if theres a concern. Last edited by Shaunzxr : 10th February 2008 at 20:47.
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10th February 2008, 20:51	#18 (permalink)
Gobfish1 Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Join Date: Apr 2005 Location: Manchester UK Posts: 370	Re: Solenoid stuck open! No Problem With This Quote: (Originally Posted by Dsix36) This is not an attempt to belittle those divers but: KNOW THINE PO2 - maybe this would have kept them alive too? , take my word on this one, the slide valve in the link is shite ,, ant got a thing to do with what your breathing ,,, you said you rolled your cylinder valves to off ,, so would you think its ok to have a slide valve on your main life line , the name alone says it all,, __________________ Steve G Apparently not the only gay diver in the village http://drinkingliberally.org/blogs/o...nzee-glock.gif http://www.scubatunes.com/audio/vol01/mp3/HiTech.mp3
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10th February 2008, 20:56	#19 (permalink)
*EBT* Apprentice Luddite Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Feb 2005 Location: UK, Brighton Posts: 1,932	Re: Solenoid stuck open! No Problem With This Quote: (Originally Posted by lizardland) It's a piece of piss as long as you can reach the cylinder valve. So easy, its rumoured you can finish the entire dive and exit the cave in front of your buddy this way, without him even noticing it __________________ Eagles May Soar, but weasels don't get sucked into jet engines! Rebreather World Terms of service Real diving t-shirts for real divers
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10th February 2008, 21:03	#20 (permalink)
Shaunzxr Inspo Luver Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Apr 2005 Location: UK, midlands Posts: 87	Re: Solenoid stuck open! No Problem With This Quote: (Originally Posted by nigelh) Duuhh.... I seem to remember doing most of a dive in that mode at the end of mod 1. I thought that was a standard drill. Yes I did it on my mod 1, 3 years ago, and practiced it since then. Normally between 20-30m with no problem I was told on an 80m dive with all the deco, holding onto a reel, its much harder than manual injection. On this drill, the setpoint is raised to 1.6 ( on an Inspo ) The solenoid is then open and the O2 is controlled by opening and closing of the cylinder valve The only problem with this drill is once 1.6 is reached the solenoid is closed by the computer making you think how good you are at keeping it from spiking In reality you could crack open the valve, thinking how easy it was on your mod 1 and S$"t youself when you see it go to 2.5 Last edited by Shaunzxr : 10th February 2008 at 22:02.
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