O-ring or Cave line

Ndovu · August 15th, 2008, 02:43 AM

Question:

Should I be using break-away o-rings to connect the snaplink on my primary regulator or cave line? My understanding is that if it was clipped off to my d-ring and some one needed it in a hurry, it would be better to have it attahced via an o-ring. This is also stated in the Fundamentals of Diving book. However, haven't actually seen anyone doing this. Any suggestions are most welcome!

Jorg · August 15th, 2008, 08:27 AM

When you clip away your reg (I assume it´s your longhose) it must be broken, otherwise there is no reason to clip away it. Still when clipping away the longhose, you use your backup.

Cheers

wilbo · August 15th, 2008, 09:06 AM

Quote: (Originally Posted by Ndovu)

Question:

Should I be using break-away o-rings to connect the snaplink on my primary regulator or cave line? My understanding is that if it was clipped off to my d-ring and some one needed it in a hurry, it would be better to have it attahced via an o-ring. This is also stated in the Fundamentals of Diving book. However, haven't actually seen anyone doing this. Any suggestions are most welcome!

use caveline to tie a boltsnap to your reg.. There is no requirement to cater for snagging (which IIRC was what the Orings used to cater for). If you get into the situation where your long hose is snagged (cannot think where..!) then if you must - you can cut the caveline or have one of your team help you (preferred)..

Quote: (Originally Posted by Jorg)

When you clip away your reg (I assume it´s your longhose) it must be broken, otherwise there is no reason to clip away it. Still when clipping away the longhose, you use your backup.

Cheers

Deco? Drills?

GLOC · August 15th, 2008, 09:39 AM

Quote: (Originally Posted by wilbo)

Deco? Drills?

Ah ha young Wilbo, good point, but as you will learn on T1 you donate from the mouth, even on deco, so the deco hose goes to the OOG diver and you take your backup reg.

Regarding drills, your buddy will be there and shouldn't have a catastrophic failure, if he does, he should be able to hold their breathe for around 5-10 secs while you unclip the long hose and give it to them.

Regards

wilbo · August 15th, 2008, 09:46 AM

Quote: (Originally Posted by Jorg)

When you clip away your reg (I assume it´s your longhose) it must be broken, otherwise there is no reason to clip away it. Still when clipping away the longhose, you use your backup.

Cheers

Quote: (Originally Posted by GLOC)

Ah ha young Wilbo, good point, but as you will learn on T1 you donate from the mouth, even on deco, so the deco hose goes to the OOG diver and you take your backup reg.

Regarding drills, your buddy will be there and shouldn't have a catastrophic failure, if he does, he should be able to hold their breathe for around 5-10 secs while you unclip the long hose and give it to them.

Regards

I was getting at Jorgs quote above.. It doesn't have to be broken to clip it off..

Not sure what you are talking about.. sucking eggs..

Ferry · August 15th, 2008, 09:47 AM

Using a o-ring as break away (so I asume using cable-tie, ty-wrap or whatever you call them) will lead to breaking away when it should stay put.

Using only an o-ring (o-ring goes through boltsnap and wrap around longhose) is as strong as using cave-line, so that will not break-away. I've used this option and used caveline. Cave-line sometimes came loose after a few months, but o-rings have the tendency to slide down the long-hose. Just go for the caveline.

wilbo · August 15th, 2008, 09:58 AM

Quote: (Originally Posted by Ferry)

Using a o-ring as break away (so I asume using cable-tie, ty-wrap or whatever you call them) will lead to breaking away when it should stay put.

Using only an o-ring (o-ring goes through boltsnap and wrap around longhose) is as strong as using cave-line, so that will not break-away. I've used this option and used caveline. Cave-line sometimes came loose after a few months, but o-rings have the tendency to slide down the long-hose. Just go for the caveline.

the Orings can perish over time.. Caveline doesn't.

When tieing the caveline knot - wet it. it allows for a tighter knot and shouldn't come loose if the ends are melted properly.

NickB · August 15th, 2008, 10:55 AM

Quote: (Originally Posted by wilbo)

When tieing the caveline knot - wet it. it allows for a tighter knot and shouldn't come loose if the ends are melted properly.

Don't wet it; it makes it harder to seal the ends.

Use a marlinespike hitch when you need a very tight knot.

TobyFish · August 15th, 2008, 01:26 PM

Quote: (Originally Posted by NickB)

Don't wet it; it makes it harder to seal the ends.

Use a marlinespike hitch when you need a very tight knot.

guys this is all good stuff... wanna copy it to the tips and tricks thread?

TobyFish · August 15th, 2008, 01:31 PM

PS... drop of superglue in the knot stops it loosening, and a hotknife will melt back even wet line

August 15th, 2008, 02:43 AM	#1 (permalink)
Ndovu(Offline) New Member Join Date: Jul 2008 Location: Canada Posts: 8	O-ring or Cave line Question: Should I be using break-away o-rings to connect the snaplink on my primary regulator or cave line? My understanding is that if it was clipped off to my d-ring and some one needed it in a hurry, it would be better to have it attahced via an o-ring. This is also stated in the Fundamentals of Diving book. However, haven't actually seen anyone doing this. Any suggestions are most welcome!

August 15th, 2008, 09:06 AM	#3 (permalink)
wilbo(Offline) Chimp 4 Join Date: Nov 2005 Location: Swindon, UK Posts: 873	Quote: (Originally Posted by Ndovu) Question: Should I be using break-away o-rings to connect the snaplink on my primary regulator or cave line? My understanding is that if it was clipped off to my d-ring and some one needed it in a hurry, it would be better to have it attahced via an o-ring. This is also stated in the Fundamentals of Diving book. However, haven't actually seen anyone doing this. Any suggestions are most welcome! use caveline to tie a boltsnap to your reg.. There is no requirement to cater for snagging (which IIRC was what the Orings used to cater for). If you get into the situation where your long hose is snagged (cannot think where..!) then if you must - you can cut the caveline or have one of your team help you (preferred).. Quote: (Originally Posted by Jorg) When you clip away your reg (I assume it´s your longhose) it must be broken, otherwise there is no reason to clip away it. Still when clipping away the longhose, you use your backup. Cheers Deco? Drills? __________________ Cheers! Wilbo DIR explorers: DIR Yorkshire Divers: YorkshireDivers One of the Foxturd chimps

August 15th, 2008, 09:39 AM	#4 (permalink)
GLOC (Online) Moderator Join Date: Nov 2005 Location: Fleet, Hants Posts: 1,963	Quote: (Originally Posted by wilbo) Deco? Drills? Ah ha young Wilbo, good point, but as you will learn on T1 you donate from the mouth, even on deco, so the deco hose goes to the OOG diver and you take your backup reg. Regarding drills, your buddy will be there and shouldn't have a catastrophic failure, if he does, he should be able to hold their breathe for around 5-10 secs while you unclip the long hose and give it to them. Regards __________________ Gareth Images of Life Photography DIR Team Foxturd Travels Underwater and Further Afar If you don't have the time to do something right, where are you going to find the time to fix it? - Stephen King

August 15th, 2008, 09:46 AM	#5 (permalink)
wilbo(Offline) Chimp 4 Join Date: Nov 2005 Location: Swindon, UK Posts: 873	Quote: (Originally Posted by Jorg) When you clip away your reg (I assume it´s your longhose) it must be broken, otherwise there is no reason to clip away it. Still when clipping away the longhose, you use your backup. Cheers Quote: (Originally Posted by GLOC) Ah ha young Wilbo, good point, but as you will learn on T1 you donate from the mouth, even on deco, so the deco hose goes to the OOG diver and you take your backup reg. Regarding drills, your buddy will be there and shouldn't have a catastrophic failure, if he does, he should be able to hold their breathe for around 5-10 secs while you unclip the long hose and give it to them. Regards I was getting at Jorgs quote above.. It doesn't have to be broken to clip it off.. Not sure what you are talking about.. sucking eggs.. __________________ Cheers! Wilbo DIR explorers: DIR Yorkshire Divers: YorkshireDivers One of the Foxturd chimps

August 15th, 2008, 09:58 AM	#7 (permalink)
wilbo(Offline) Chimp 4 Join Date: Nov 2005 Location: Swindon, UK Posts: 873	Quote: (Originally Posted by Ferry) Using a o-ring as break away (so I asume using cable-tie, ty-wrap or whatever you call them) will lead to breaking away when it should stay put. Using only an o-ring (o-ring goes through boltsnap and wrap around longhose) is as strong as using cave-line, so that will not break-away. I've used this option and used caveline. Cave-line sometimes came loose after a few months, but o-rings have the tendency to slide down the long-hose. Just go for the caveline. the Orings can perish over time.. Caveline doesn't. When tieing the caveline knot - wet it. it allows for a tighter knot and shouldn't come loose if the ends are melted properly. __________________ Cheers! Wilbo DIR explorers: DIR Yorkshire Divers: YorkshireDivers One of the Foxturd chimps

August 15th, 2008, 08:27 AM	#2 (permalink)
Jorg(Offline) New Member Join Date: Aug 2007 Location: The Netherlands Posts: 50	When you clip away your reg (I assume it´s your longhose) it must be broken, otherwise there is no reason to clip away it. Still when clipping away the longhose, you use your backup. Cheers

August 15th, 2008, 09:47 AM	#6 (permalink)
Ferry(Offline) New Member Join Date: Jul 2007 Location: The Netherlands Posts: 21	Using a o-ring as break away (so I asume using cable-tie, ty-wrap or whatever you call them) will lead to breaking away when it should stay put. Using only an o-ring (o-ring goes through boltsnap and wrap around longhose) is as strong as using cave-line, so that will not break-away. I've used this option and used caveline. Cave-line sometimes came loose after a few months, but o-rings have the tendency to slide down the long-hose. Just go for the caveline.

August 15th, 2008, 10:55 AM	#8 (permalink)
NickB(Offline) Always lowering the tone Join Date: Dec 2005 Location: Cardiff, UK Posts: 341	Quote: (Originally Posted by wilbo) When tieing the caveline knot - wet it. it allows for a tighter knot and shouldn't come loose if the ends are melted properly. Don't wet it; it makes it harder to seal the ends. Use a marlinespike hitch when you need a very tight knot. __________________ SnowHeads / BreastFriends / Free Money!

August 15th, 2008, 01:26 PM	#9 (permalink)
TobyFish(Offline) Fine Upstanding Member Join Date: May 2006 Location: Telford, UK Posts: 795	Quote: (Originally Posted by NickB) Don't wet it; it makes it harder to seal the ends. Use a marlinespike hitch when you need a very tight knot. guys this is all good stuff... wanna copy it to the tips and tricks thread? __________________ Rude-boy Volvo "Gangsta Rollin' in me nine-six-oh"

August 15th, 2008, 01:31 PM	#10 (permalink)
TobyFish(Offline) Fine Upstanding Member Join Date: May 2006 Location: Telford, UK Posts: 795	PS... drop of superglue in the knot stops it loosening, and a hotknife will melt back even wet line __________________ Rude-boy Volvo "Gangsta Rollin' in me nine-six-oh"