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| | #21 (permalink) |
| Normal people worry me Current Rebreather/s: Classic Kiss Other CCR RB80 / Clone Ray Other SCR Home Build Other Rebreather/s: Other CCR RB80 / Clone Ray Other SCR Home Build Join Date: Jun 2005 Location: Stockholm Sweden
Posts: 473
| Re: oxygen ccr conversions Hmm, not enough homebuilders around here! Those disposable tanks are way to expensive to fit a 30$ bill. I noticed the funny CEDU fine print by the way: "Please note that all items seen on these pages that come into contact with high pressure oxygen have been Oxygen Cleaned, Oxygen Converted, Oxygen Compatible or Designed for Oxygen use."
__________________ My initials: JAAP |
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| | #22 (permalink) |
| The old ways still work. Current Rebreather/s: Home Build Other Rebreather/s: Not Bought Yet Home Build Join Date: Sep 2006 Location: Boise Idaho
Posts: 238
| Re: oxygen ccr conversions Dave (Holder: CEDU Honors of the Association #6, awarded 2001) And for Dr. Bob, CEDU Director: FIT turned out at least two good grads! Oh.. small typo.. I'll have to shoot for 08.. kinda forgot what year it was. Speaking of the CEDU I'm not sure but at one time he may have published my expos'e on the worlds cheapest 02 add valve priced at under $4.00 and any moron with a scissor and a drill can make one. That puts the whole 02 system on my throw away priced at $14.00.. I may have over estimated costs on the rest.. what did I say? $30.00? OK $25.00 rebreather and a happy meal in case the deco goes bad. Bill |
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| | #23 (permalink) |
| Diveshop of Horrors ![]() Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Evolution Megalodon rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey
Posts: 2,913
| Re: oxygen ccr conversions Hmmmm.... who is the other one? Oh.. small typo.. I'll have to shoot for 08.. kinda forgot what year it was. Speaking of the CEDU I'm not sure but at one time he may have published my expos'e on the worlds cheapest 02 add valve priced at under $4.00 and any moron with a scissor and a drill can make one. That puts the whole 02 system on my throw away priced at $14.00.. I may have over estimated costs on the rest.. what did I say? $30.00? OK $25.00 rebreather and a happy meal in case the deco goes bad. Bill Dr Bob and I share the same Alma Mater, the Florida Institute of Technology. We were in different schools, but both FIT. Don't tell me that there are three of us? And why the heck isn't Bob hanging out here too? Need to shoot him a note and renew the FEOR design team. Tom Rose too. The 02 add valve is something that you and others (myself for sure) came up with, as it's an obvious method. I do also seem to remember that our fearless CEDU Director did mentionn this top secret method in an unclassified briefing and may have let it slip to the public though, and since it is a serious CEDU security breach Im glad he gave you the credit... Have something else to show you that you may not have seen: The hose to add 02 add to the counterlung reliably: Think Schraeder Valve and a can of tire-inflation crap. Dump the can-o-crap and use the plastic hose with the fitting on the end. It fits the counterlung fitting perfectly on one end and the 02 feed on the other. This component can cost ranging from free (look under the backseat of your car) to having to buy one once for $5.00. Sadly it pushes the overall price up unless retrieved and re-used If you want to make it in '07, let me know and I'll run the date to suit. Guys, what Bill and I are talking about is that a few of us in the old days built up rigs consisting of a motorcycle tire tube, a scrubber of some sort, some PVC, and a disposable 02 bottle as used in the MAPP/02 brazing torch sets sold at hardware stores. My scrubber is one leg of a womans (ok, I am sure that guys waer them too) pantyhose, with the 'sorb dumped down into the foot, and knotted. I stuff it into one end of a cut-off tire tube and 'wedge it in there real good'. (actually I restrict the tire tube above and below the 'scrubber' with a pair of plastic wire ties). I knot the far end of the tire tube leaving about 15 inches of tube below the 'scrubber' and there is a pendulum counterlung/scrubber setup. The filler stem of the tire tube is left in place and the hose from a can-o-tire-inflating-crap is used to connect it to a throw away welding 02 bottle using Bob's $4.50 manual add valve to control flow (secret part, hey we need *something* to be secret). On the near end of the tire tube a PVC reducing fitting and another tie-wrap make the "mouthpiece interface adapter) and a mouthpiece is attached. Done..... Have had one of these down to about 50 feet, but don't recommend it as a habit. Bob's rig is probably a little different. Mine is cheapest.... Dave
__________________ "Silent Diving with No Bubbles and No Politics".... www.nobubblediving.com Last edited by Dave Sutton : 24th November 2006 at 11:07. |
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| | #24 (permalink) |
| The old ways still work. Current Rebreather/s: Home Build Other Rebreather/s: Not Bought Yet Home Build Join Date: Sep 2006 Location: Boise Idaho
Posts: 238
| Re: oxygen ccr conversions I just looked at Dr. Bob's CEDU pages.. It would appear that I can niether confirm nor deny any involvement with the CEDU, any expos'e, leak of information or any other involvment inside the CEDU beltway. I deny knowledge of, or rumors about myself or the other 4 missing "members". I publicly deny any rumor that I am one of those 4 aledged members and any involment in CEDU black ops. I deny any accusations that I "may" be part of a CEDU sleeper cell or that I was classified with a codename. I have never meet Dr. Bob. I deny that I have ever spoke to him ( Dr. Bob ) or he to me via any electronic means. CEDU is only a rumor. |
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| | #25 (permalink) |
| Reads the fine print Current Rebreather/s: Megalodon Home Build Other Rebreather/s: Not Bought Yet MK 15.X Home Build Join Date: Mar 2005 Location: Chicago, Illinois, USA
Posts: 584
| Re: oxygen ccr conversions It would appear that I can niether confirm nor deny any involvement with the CEDU, any expos'e, leak of information or any other involvment inside the CEDU beltway. I deny knowledge of, or rumors about myself or the other 4 missing "members". I publicly deny any rumor that I am one of those 4 aledged members and any involment in CEDU black ops. I deny any accusations that I "may" be part of a CEDU sleeper cell or that I was classified with a codename. I have never meet Dr. Bob. I deny that I have ever spoke to him ( Dr. Bob ) or he to me via any electronic means. CEDU is only a rumor. ![]() |
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| | #26 (permalink) |
| Normal people worry me Current Rebreather/s: Classic Kiss Other CCR RB80 / Clone Ray Other SCR Home Build Other Rebreather/s: Other CCR RB80 / Clone Ray Other SCR Home Build Join Date: Jun 2005 Location: Stockholm Sweden
Posts: 473
| Re: oxygen ccr conversions Pantyhose scrubber in a strapped tubestylebag, lovely! So are there any rules for this "cheapest Rebreather contest"? How about the sorb? Home made? If not I guess a crazy pendulum with a plastic water tap DSV and a strapped pantyhose scrubber full of "O3" in a bag is hard to beat. No need for O2-dosing or tanks... OK I will admit this "O3" stuff is scary shit. I will bring some "O3" and regular KO2 to Tech Diving 2006 tomorrow if anyone want a demonstration of how user friendly it isn't.
__________________ My initials: JAAP |
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| | #27 (permalink) |
| The old ways still work. Current Rebreather/s: Home Build Other Rebreather/s: Not Bought Yet Home Build Join Date: Sep 2006 Location: Boise Idaho
Posts: 238
| Re: oxygen ccr conversions Pantyhose scrubber in a strapped tubestylebag, lovely! I do not think there are any rules.. if your sorb is draino blended with chalk and you dive it and live.... OK that may be the only rule. If you used a spent condom in the design.. great. But you gotta have U/W documentation of use.So are there any rules for this "cheapest Rebreather contest"? . For beginers a cheesecake shot by the stern of the Doria is fine. For the big shots like Dave the stern of the Titanic in the background will be acceptable. Bill |
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| | #28 (permalink) |
| New Member Current Rebreather/s: Home Build Not Bought Yet Other Rebreather/s: Home Build Not Bought Yet Join Date: Nov 2006 Location: Singapore
Posts: 68
| Re: oxygen ccr conversions Guys, what Bill and I are talking about is that a few of us in the old days built up rigs consisting of a motorcycle tire tube, a scrubber of some sort, some PVC, and a disposable 02 bottle as used in the MAPP/02 brazing torch sets sold at hardware stores. My scrubber is one leg of a womans (ok, I am sure that guys waer them too) pantyhose, with the 'sorb dumped down into the foot, and knotted. I stuff it into one end of a cut-off tire tube and 'wedge it in there real good'. (actually I restrict the tire tube above and below the 'scrubber' with a pair of plastic wire ties). I knot the far end of the tire tube leaving about 15 inches of tube below the 'scrubber' and there is a pendulum counterlung/scrubber setup. The filler stem of the tire tube is left in place and the hose from a can-o-tire-inflating-crap is used to connect it to a throw away welding 02 bottle using Bob's $4.50 manual add valve to control flow (secret part, hey we need *something* to be secret). On the near end of the tire tube a PVC reducing fitting and another tie-wrap make the "mouthpiece interface adapter) and a mouthpiece is attached. Done..... Gosh. How old were you when you did this, Dave? Have had one of these down to about 50 feet, but don't recommend it as a habit. Bob's rig is probably a little different. Mine is cheapest.... Dave TC |
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| | #29 (permalink) |
| Diveshop of Horrors ![]() Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Evolution Megalodon rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey
Posts: 2,913
| Re: oxygen ccr conversions Gosh. How old were you when you did this, Dave? TC The first time? 21. The last time? Three weeks ago at 48... Not a bad run of luck! Dave Sutton "Semi-Professional Small Boy still playing with toys"
__________________ "Silent Diving with No Bubbles and No Politics".... www.nobubblediving.com |
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| | #30 (permalink) |
| New Member Current Rebreather/s: Home Build Not Bought Yet Other Rebreather/s: Home Build Not Bought Yet Join Date: Nov 2006 Location: Singapore
Posts: 68
| Re: oxygen ccr conversions Dear Dave, Let's see if I can beat your age of 21 for a first time, and still come out alive. ![]() By the way, I have a little question here and it goes like that: What will happen to the diver if he dives a pendulum pure O2 rebreather without purging out the nitrogen and air that got in the loop before diving it? Does it mean he can dive slightly deeper than the 20 feet limit? Let's assume this diver here has got ppO2 meter. Thank you all, God Bless TC |
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