db8us:Does this say somehting about the Intelligence of the CCR-users ?
I do not get the point
Michael
No, but it certainly says a lot about our sanity! :bonk:
BJD :anakinpod
P.S.---What point? :biggrinba
Rebreathers, Partially closed or fully closed?
- Thread starter ScubaJewel
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No, but it certainly says a lot about our sanity! :bonk:
BJD :anakinpod
P.S.---What point? :biggrinba
Shas
Registered
jptrealty:
For anyone on this list that isn't familar with John I would like to point out that this guy has quite a reputation in the NY area - see copy of posting put out on the NWD site February this year.
"Any persons on the list that have been taken in by John Taylor scaming people for a rebreather please email Paul Blanchet at ussdpv@juno.com . The above said person is now at the 13th precinct in NYC. The Detectives would like to talk to you"
The rig he used to own was brought, checked out at SMI and is now used for research and tagging sharks.
If your going to do business with this guy be careful.
Shas
canuckdiver
Contributor
madmole:
Hmmmm, I guess that would make my CCR IDA-71 A russian TANK???
:moose:
Merry Christmas to all, and a very happy, and very safe New Year of no-bubbles diving to all of you crazed rebreather folks out there!
BJD
BJD
caveseeker7
Contributor
My guess was Lada ...madmole:
canuckdiver
Contributor
caveseeker7:
:rude: to BOTH of ya! LOL
Merry Christmas, dive safe
CCRDolphinDiver
Registered
Well, there really isnt a bad "mainstream" rebreather out there, the choice will mainly be based on your needs. If you only want to play around the recreational limits, then a SCR like the Drager Dolphin or even the Ray will be a fine unit. If you want more versatility, bottom time, less noise/bubbles at the trade off of higher cost and more intense training the various CCR's are the way to go. Take anybodys slam of any mainstream unit with a large hunk of salt, there is really nothing wrong with the Inspiration, Prizm, KISS, or Megalodon. These are the most available units currently on the market. I have dived and played with all of these save the inspiration but have several friends that have these and are quite happy. OK, Reality check, why do you need a RB? That is the question. Are you getting enough Bottom time on OC? Have you tried Nitrox? Are you doing photography or video? (The lower noise signature of a RB is a big plus when sneeking up on wary marine life) Is weight an issue? (I went from a 250 lb kit down to 125lb for dives down to 200 feet) Are you ready for the much higher maintainence responsibilitys of RB ownership. Most OC scuba gear will work for a very long time with very little or no maintaince, and when it breaks, its usually an easy bailout to the surface. Not so with RB's. There are these little nasty bacterial bugs that love to live in the breathing loop, if its not properly cleaned. There can be battery issues, sensor issues (sensors should be replaced every year at up to $80 each(most CCR's have 3) Scrubber issues, what grade, logistics of providing your scrubber for a long trip. Training issues, getting certified on most CCR's will cost you between 500-1k $. So now the question is, is diving a RB worth the additional costs and issues. My opinion, a resounding YES. The only time I pull out my OC gear is for my occasional salvage dive. I really have no interest in subjecting my RB to those conditions. I now have well over 150 hours on my CCR to depths of 300 feet and absolutly love it. Another post recommended Jeff Bozanic's book on RB's available from Best publishing or IANTD. you may also find a ton of information on my website at www.tmishop.com. Spend a bunch of time reading, before you spend your money. If you are near Portland Or, I could arrange a RB experience for you in a pool. It will be very different that what you are used to. Good luck and have fun.
I have a question here.
Why do some say the dreager dolphin can or should only be used for recreational diving?
Now i aggree that a ccr you get the benifit of the perfect pp02 but with the scr you are getting away from oc,moist warm gas,less weight on your back,not as much bulk of equiptment you need to carry to do long bottom times with oc,you can dive at 100 feet or 200 feet and use the same amount of gas. the biggest problem i have found that the concern for how much deco you build up rather then the amount of gas!
Yes if you have the money to purchase the equiptment and the TRAINING for a ccr then yes that is the only way to go.But i am confused why so many think 130 max on the dolphin.
would like to hear opinions and reasons
thanks.
if you dont want to post e mail me tripledigi@aol.com
Why do some say the dreager dolphin can or should only be used for recreational diving?
Now i aggree that a ccr you get the benifit of the perfect pp02 but with the scr you are getting away from oc,moist warm gas,less weight on your back,not as much bulk of equiptment you need to carry to do long bottom times with oc,you can dive at 100 feet or 200 feet and use the same amount of gas. the biggest problem i have found that the concern for how much deco you build up rather then the amount of gas!
Yes if you have the money to purchase the equiptment and the TRAINING for a ccr then yes that is the only way to go.But i am confused why so many think 130 max on the dolphin.
would like to hear opinions and reasons
thanks.
if you dont want to post e mail me tripledigi@aol.com
landfish:
as you go deeper the mix has to contain less oxygen, this also means you need a higher flow rate (more gas used) otherwise youl be hypoxic in shallow water.. people have plumbed in gas switch blocks which now makes for more complex diving.. other have used open circuit to descent to whatever depth they need to make the rb breathable (with a lean mix and lower flowe rate)...
on an unmodified drager, 130 is really pushing it, there is little benefit here.. I would say 100 is more reasonable... although the most beneficial range is probably in the area of 30-60 fsw or so doing things like photography..
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