The Bucket Rebreather

Pawel Szopinski · 4th May 2008, 15:08

Quote: (Originally Posted by mattias)

Well written

Already waiting for "eCCR 4 dummies"

I agree! Where is the version with the calculator and a tiny motor to run the oxygen valve?

jsevland · 5th May 2008, 15:10

Hi again

An otherwise bright non-diving friend of mine, was slightly thrown off track by the use of the term "Oxygen Partial Pressure" at the end of Mark 3.

Since I failed to convince him of taking the CCR-course, I have now rewritten that section.

As for continuing the development of the Bucket Rebreather - towards an eCCR - I fear it I will be forced to make design choices that will favour particular commercial units and not others.

And we all know how popular that is on this forum

jsevland

York · 6th May 2008, 08:43

I don't mean to be pedantic, but run a spell-checker!
(First paragraph, first line: "rebreahers" vs "rebreathers"
If you want to get ridd of the silly blue line at the bottom of the page, send me the original document and I'll be happy to convert it for you (put your name under the title - it's original work).

writing "don't try this at home" is the best way of making sure people actually do - hell, I'll go looking for bucket as soon as I get back home

Very nice work, especially the drawing

J

**nigelh** · 6th May 2008, 11:47

The only problem is that you are underselling the bucket rebreather.
Even the Mk 1 will sustain you for a minute or so not seconds.
'Everybody' knows you can hold your breath for 'seconds' and not die so rewrite those bits with 'minutes' for increased credibility.

Hey you didn't mention that I have to add lead to my bucket to make it sink with me...
Oh...
You did say not to try it at home didn't you...
Forget that...
I never asked...

jsevland · 6th May 2008, 12:04

Thanks for your pedantic reply.

I'm so used to seeing red lines under rebreather jargon, that I missed the spelling.

Regarding the final warning of "don't try this at home" - it's the greatest tease ever - I simply could not resist ...

I remember having dived the Mark 1 as a child and it obviously did not kill me,
although it never caught on among my friends

jsevland

**PhilSiswick** · 6th May 2008, 12:52

Excellent - one of the very best explanations I have seen yet! Green sent.

Cheers,

jsevland · 7th May 2008, 12:42

Quote: (Originally Posted by nigelh)

The only problem is that you are underselling the bucket rebreather.
Even the Mk 1 will sustain you for a minute or so not seconds.
'Everybody' knows you can hold your breath for 'seconds' and not die so rewrite those bits with 'minutes' for increased credibility.

Nigelh may be right, but I surely didn't want to oversell Mark 1!

The gas mix in the bucket will very quickly turn hypoxic if you keep breathing it.
According to Alex (AD_ward9) simulation and my own naive Evolution Simulator,
the loop on a CCR will be hypoxic in less than a minute if the O2 (or controller) is turned off.

Depending on the size of the bucket (and your head), the Mark 1 may out-perform other rebreathers,
but that comparison is surely outside the intended scope of my article.

I will keep the original wording, even if someone believe it will sustain life for longer.

Please, do not risk your lives proving me wrong!

jsevland

**nigelh** · 7th May 2008, 13:05

Quote: (Originally Posted by jsevland)

According to Alex (AD_ward9) simulation and my own naive Evolution Simulator,
the loop on a CCR will be hypoxic in less than a minute if the O2 (or controller) is turned off.

So you haven't tried it in the pool have you?
Turn off the O2 and wait.
Flush the O2 out of the reg if you like so you can leave the controller on and watch the ppO2.
It isn't a minute.
You will get very bored waiting for the ppO2 to fall enough to set the alarms off.

That's the wonderful thing about a rebreather. You get time to think.

maayanh · 7th May 2008, 19:55

when do you start selling the" Bucket Rebreather Mark 4".

I think you probably have a untaped market

divelermentov · 7th May 2008, 23:16

na, I am waiting for the Mark10, as this modell will come complete with
a) *ping*
b) torpedo launcher
c) nuclear powered
d) cunning tower
e) triple prop
f) and lots of blink

and -uuups- it is called a submarine and as the US Navy is slowly running out of money there might be some bargains very soon

4th May 2008, 15:08	#11 (permalink)
Pawel Szopinski New Member Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Vision Join Date: Feb 2008 Location: London, UK Posts: 88	Re: The Bucket Rebreather Quote: (Originally Posted by mattias) Well written Already waiting for "eCCR 4 dummies" I agree! Where is the version with the calculator and a tiny motor to run the oxygen valve?
(Online)

6th May 2008, 08:43	#13 (permalink)
York probubbly not Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Mar 2005 Location: Bristol, UK Posts: 118	Re: The Bucket Rebreather I don't mean to be pedantic, but run a spell-checker! (First paragraph, first line: "rebreahers" vs "rebreathers" If you want to get ridd of the silly blue line at the bottom of the page, send me the original document and I'll be happy to convert it for you (put your name under the title - it's original work). writing "don't try this at home" is the best way of making sure people actually do - hell, I'll go looking for bucket as soon as I get back home Very nice work, especially the drawing J
(Offline)

6th May 2008, 11:47	#14 (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: 784	Re: The Bucket Rebreather The only problem is that you are underselling the bucket rebreather. Even the Mk 1 will sustain you for a minute or so not seconds. 'Everybody' knows you can hold your breath for 'seconds' and not die so rewrite those bits with 'minutes' for increased credibility. Hey you didn't mention that I have to add lead to my bucket to make it sink with me... Oh... You did say not to try it at home didn't you... Forget that... I never asked... __________________ nigelh
(Online)

6th May 2008, 12:52	#16 (permalink)
PhilSiswick WSKD 0001 Current Rebreather/s: Evolution Other Rebreather/s: Inspiration Vision Join Date: Apr 2006 Location: Oxford, UK Posts: 880	Re: The Bucket Rebreather Excellent - one of the very best explanations I have seen yet! Green sent. Cheers, __________________ Phil No comment on open circuit... it's an evolutionary dead end not really worth discussing here. Dave Sutton, 2007 I have always felt that the dive I am on is not nearly important as the dives I plan to be on the rest of my life. Tom Rose, 2007 www.hugsac.org.uk
(Offline)

7th May 2008, 12:42	#17 (permalink)
jsevland New Member Current Rebreather/s: Evolution Other Rebreather/s: Join Date: Aug 2007 Location: Norway Posts: 49	Re: The Bucket Rebreather Quote: (Originally Posted by nigelh) The only problem is that you are underselling the bucket rebreather. Even the Mk 1 will sustain you for a minute or so not seconds. 'Everybody' knows you can hold your breath for 'seconds' and not die so rewrite those bits with 'minutes' for increased credibility. Nigelh may be right, but I surely didn't want to oversell Mark 1! The gas mix in the bucket will very quickly turn hypoxic if you keep breathing it. According to Alex (AD_ward9) simulation and my own naive Evolution Simulator, the loop on a CCR will be hypoxic in less than a minute if the O2 (or controller) is turned off. Depending on the size of the bucket (and your head), the Mark 1 may out-perform other rebreathers, but that comparison is surely outside the intended scope of my article. I will keep the original wording, even if someone believe it will sustain life for longer. Please, do not risk your lives proving me wrong! jsevland
(Offline)

7th May 2008, 13:05	#18 (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: 784	Re: The Bucket Rebreather Quote: (Originally Posted by jsevland) According to Alex (AD_ward9) simulation and my own naive Evolution Simulator, the loop on a CCR will be hypoxic in less than a minute if the O2 (or controller) is turned off. So you haven't tried it in the pool have you? Turn off the O2 and wait. Flush the O2 out of the reg if you like so you can leave the controller on and watch the ppO2. It isn't a minute. You will get very bored waiting for the ppO2 to fall enough to set the alarms off. That's the wonderful thing about a rebreather. You get time to think. __________________ nigelh
(Online)

7th May 2008, 19:55	#19 (permalink)
maayanh New Member Current Rebreather/s: Not Bought Yet Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Not Bought Yet Join Date: Jan 2007 Posts: 18	Re: The Bucket Rebreather when do you start selling the" Bucket Rebreather Mark 4". I think you probably have a untaped market
(Offline)

7th May 2008, 23:16	#20 (permalink)
divelermentov Nutty dentist - uwdriller Current Rebreather/s: Inspiration Classic Home Build Other Rebreather/s: Home Build Join Date: May 2006 Location: Auckland Posts: 586	Re: The Bucket Rebreather na, I am waiting for the Mark10, as this modell will come complete with a) ping b) torpedo launcher c) nuclear powered d) cunning tower e) triple prop f) and lots of blink and -uuups- it is called a submarine and as the US Navy is slowly running out of money there might be some bargains very soon __________________ May The Sorb Be With You
(Offline)

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