Shallow Dive on a rebreather

pete611 · 20th December 2007, 20:34

Hi to all RBD ,to star i'm only a SCR diver very interested on CCR .people talk how deep can a dive on a ccr,i said how shaloow can you dive on a CCR before you go back to OC

Stephane · 20th December 2007, 20:55

Hi,

Why do you want to go back to OC?

I will never go back to OC, even for shallow dives.

tekdiver170 · 20th December 2007, 21:38

I dive mine on 30' dives. Every dive is a training dive.

lizardland · 20th December 2007, 22:12

I know I'm probably in the minority but I can't be bothered with a rebreather in the shallows. Apart from the cost of lime, O2 and cell time outweighing the cost of an air or even nitrox fill, I similarly can't be bothered with schlepping all that kit around (I won't dive a Rebreather without bailout deeper than I can keep the loop on pure O2) and I'm too lazy to waste brain power on diving it where I'm not getting any advantage.

Maybe I'm just over-conservative but for me on a rebreather there is no real let up in either mental or physical load on a shallow dive as there is on something deeper. Apart from the deco obligation then you need to put the same amount of effort into your dive regardless of the depth on CCR. I'm not too worried about losing skills by missing the odd dive, in reality I usually end up sitting out shallow dives or going somewhere else.

Cheers,

Stuart

grandizer52 · 20th December 2007, 23:08

pete,
started on a dolphin not to long ago, you'll like a CCR better cause no matter if your at 10FSW, or 1000FSW your gonna like it much better.

laytah
steve

zbskii · 21st December 2007, 01:22

I do dives above 60fsw all the time. I actually find them more challenging in some sense; buoyancy and trim have to be perfect, and keeping your set point is more difficult, imho.

Gilles · 21st December 2007, 03:43

There many good arguments along the line of...

right tool for the job...and CCR is an appropriate one for shallow dives...CCR more dangerous than OC...

These are technically correct statements, but I CCR every dive, and I will continue to do so.

Mark Chase · 21st December 2007, 07:17

Quote: (Originally Posted by pete611)

Hi to all RBD ,to star i'm only a SCR diver very interested on CCR .people talk how deep can a dive on a ccr,i said how shaloow can you dive on a CCR before you go back to OC

On a common sense level 50m, on an economic level 30m (coz i dont need trimix any more) but on a practical level I do all my diving on CCR (except occasional single tank dives abroad) because I only get 50-80 dives a year and I need to stay on top of my game.

If I ever reach the stage where I think this is not necessary I have a set of twin 7s in the shead for 30m stuff.

Some people love CCR and love diving them. Fine by me but I never got that bug. To me they are just a tool to overcome the cost and logistics problems of the diving i normally do. Every time I do a shallow OC dive I think to my self wow this is great. Easy buoyancy control minimal drag, virtually no equipment issues and total confidence in what your breathing.

Then every time i pull off a 50-80mdive for three hours on a CCR i think to my self, wow this is great. £15 for gas and lime, warm moist gas, limitless supply to overcome problems at depth, zero logistical problems with regard to equipment and gas fills, no depth limitations, shallow or deep doesn't matter.

ATB

Mark

**nigelh** · 21st December 2007, 09:20

Quote: (Originally Posted by lizardland)

I know I'm probably in the minority but I can't be bothered with a rebreather in the shallows.

Conversly I just don't get in the water often enough to keep bang on familier with two sets of gear. To a measure every dive does something for me in terms of retraining so I want consistant kit.
I even leave the 18/40 in it at 5 meters.

The only time I deviate from that is to dive the IDA but then, I never said I was sane.

**jepuskar** · 21st December 2007, 14:31

Hi Pete,

As you can see from the two previous experienced posters.....I think the correct answer Pete is...it's up to you to decide how shallow you want to dive on a CCR.

J

20th December 2007, 20:34	#1 (permalink)
pete611 RBD one dive at a time... Current Rebreather/s: Dolphin Other Rebreather/s: Dolphin Join Date: Feb 2006 Location: Puerto Rico Posts: 223	Shallow Dive on a rebreather Hi to all RBD ,to star i'm only a SCR diver very interested on CCR .people talk how deep can a dive on a ccr,i said how shaloow can you dive on a CCR before you go back to OC __________________ Warm Water Only For Me Please.. ><))))°> ><))))°> WARNING: the rebreather is not broken is a Dolphin!!!
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20th December 2007, 20:55	#2 (permalink)
Stephane Stéphane Acounis Current Rebreather/s: rEvo Other Rebreather/s: rEvo Join Date: Nov 2005 Location: Nantes - France Posts: 769	Re: Shallow Dive on a rebreather Hi, Why do you want to go back to OC? I will never go back to OC, even for shallow dives. __________________ Stéphane
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20th December 2007, 21:38	#3 (permalink)
tekdiver170 New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Jan 2007 Location: Honolulu, HI Posts: 87	Re: Shallow Dive on a rebreather I dive mine on 30' dives. Every dive is a training dive.
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20th December 2007, 22:12	#4 (permalink)
lizardland Yak Current Rebreather/s: MK 15.X Home Build Other Rebreather/s: Classic Kiss Home Build Join Date: Mar 2005 Location: North... Posts: 1,301	Re: Shallow Dive on a rebreather I know I'm probably in the minority but I can't be bothered with a rebreather in the shallows. Apart from the cost of lime, O2 and cell time outweighing the cost of an air or even nitrox fill, I similarly can't be bothered with schlepping all that kit around (I won't dive a Rebreather without bailout deeper than I can keep the loop on pure O2) and I'm too lazy to waste brain power on diving it where I'm not getting any advantage. Maybe I'm just over-conservative but for me on a rebreather there is no real let up in either mental or physical load on a shallow dive as there is on something deeper. Apart from the deco obligation then you need to put the same amount of effort into your dive regardless of the depth on CCR. I'm not too worried about losing skills by missing the odd dive, in reality I usually end up sitting out shallow dives or going somewhere else. Cheers, Stuart __________________ Can you imagine drifting along in the sea with your mouth open and a load of f***ing plankton going in? You'd like it, would you? www.westons-cider.co.uk Azerbaijani Association of Technical Divers Publicity Officer and Goat Wrangler
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20th December 2007, 23:08	#5 (permalink)
grandizer52 Sport Kiss & Shearwater Current Rebreather/s: Sport Kiss Other CCR Home Build Other Rebreather/s: Not Bought Yet Sport Kiss Classic Kiss MK 15.X Other CCR Home Build Join Date: May 2006 Location: pearl city hawaii EARTH moving to Iscandar Posts: 254	Re: Shallow Dive on a rebreather pete, started on a dolphin not to long ago, you'll like a CCR better cause no matter if your at 10FSW, or 1000FSW your gonna like it much better. laytah steve
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21st December 2007, 01:22	#6 (permalink)
zbskii I have a diving problem. Current Rebreather/s: Sport Kiss Other Rebreather/s: Join Date: Dec 2005 Location: Portland, OR Posts: 138	Re: Shallow Dive on a rebreather I do dives above 60fsw all the time. I actually find them more challenging in some sense; buoyancy and trim have to be perfect, and keeping your set point is more difficult, imho.
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21st December 2007, 03:43	#7 (permalink)
Gilles Worship the feminine Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Sep 2005 Location: Den Haag (Netherlands) Posts: 762	Re: Shallow Dive on a rebreather There many good arguments along the line of... right tool for the job...and CCR is an appropriate one for shallow dives...CCR more dangerous than OC... These are technically correct statements, but I CCR every dive, and I will continue to do so. __________________ Gilles http://www.dirrebreather.com
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21st December 2007, 07:17	#8 (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: Shallow Dive on a rebreather Quote: (Originally Posted by pete611) Hi to all RBD ,to star i'm only a SCR diver very interested on CCR .people talk how deep can a dive on a ccr,i said how shaloow can you dive on a CCR before you go back to OC On a common sense level 50m, on an economic level 30m (coz i dont need trimix any more) but on a practical level I do all my diving on CCR (except occasional single tank dives abroad) because I only get 50-80 dives a year and I need to stay on top of my game. If I ever reach the stage where I think this is not necessary I have a set of twin 7s in the shead for 30m stuff. Some people love CCR and love diving them. Fine by me but I never got that bug. To me they are just a tool to overcome the cost and logistics problems of the diving i normally do. Every time I do a shallow OC dive I think to my self wow this is great. Easy buoyancy control minimal drag, virtually no equipment issues and total confidence in what your breathing. Then every time i pull off a 50-80mdive for three hours on a CCR i think to my self, wow this is great. £15 for gas and lime, warm moist gas, limitless supply to overcome problems at depth, zero logistical problems with regard to equipment and gas fills, no depth limitations, shallow or deep doesn't matter. 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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21st December 2007, 09:20	#9 (permalink)
nigelh New Member Current Rebreather/s: Inspiration Vision Other CCR Other Rebreather/s: Inspiration Classic Other CCR Join Date: Mar 2005 Location: Brighton, Sussex, UK Posts: 837	Re: Shallow Dive on a rebreather Quote: (Originally Posted by lizardland) I know I'm probably in the minority but I can't be bothered with a rebreather in the shallows. Conversly I just don't get in the water often enough to keep bang on familier with two sets of gear. To a measure every dive does something for me in terms of retraining so I want consistant kit. I even leave the 18/40 in it at 5 meters. The only time I deviate from that is to dive the IDA but then, I never said I was sane. __________________ nigelh
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21st December 2007, 14:31	#10 (permalink)
jepuskar NA Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Aug 2005 Location: Chicago, IL Posts: 397	Re: Shallow Dive on a rebreather Hi Pete, As you can see from the two previous experienced posters.....I think the correct answer Pete is...it's up to you to decide how shallow you want to dive on a CCR. J
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