[PSUBS-MAILIST] Manual Scrubber.

Thu Apr 23 05:23:01 EDT 2015

Hi Antoine.

Im going to make a mask using 2x ordinary snorkel valves glued to a
suitable mask.  I made one before and it worked fine.  Nice and simple.
Mask, bit of glue and job done.  Will post a pic when I finish it.

Regards
James

On 22 April 2015 at 14:14, Antoine Delafargue via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Hi James,
>
> As we planned to use the manual mode quite a lot on Pilot Fish sub, we
> looked at this issue in detail and I tested various ways:
> 1-simple snorchel without check valve: you breathe in from the nose and
> exhale from the mouth.
> very simple actually, if your breathing skills are not yet there, after a
> few hours they will. I think if you are looking at emergency set, this
> should be enough
> 2-rebreather mushroom valve with mouth piece: very heavy, needs to be
> hanged inside the sub. Rebreather mouth piece are hard to find.
> 3-rebreather mushroom valve with medical type mouth+nose cover: not tested
> yet. I expect less tiring.
>
> regards
> Antoine
>
>
>
> On Wed, Apr 22, 2015 at 3:04 PM, James Frankland via Personal_Submersibles
> <personal_submersibles at psubs.org> wrote:
>
>>  Hi Hank,
>>
>> I'll test it first with just a pipe but yes, a mask of some sort would be
>> best.  Ive been googling but haven't found anything suitable so far.  Lots
>> of masks available but they all seem to work the wrong way.  ie breath in
>> through a tube and breath out into the fresh air.  We need fresh air in,
>> breath out down the tube.  Should be simple enough.
>>
>> I made one once for welding in a tight space out of a couple of snorkel
>> valves stuck together.
>>
>> Ive got a WW2 gas mask that is perfect.  It has 2 pipes, one in, one out
>> that you can connect to whatever you want, but I think id look a bit of a
>> wally with it on!
>>
>> On 22 April 2015 at 12:32, hank pronk via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>>>
>>> James,
>>> It is funny, I was just about to ask the same question.  When I saw
>>> Alec's mouth piece arrangement, I figured I better get on that so I also
>>> ordered a mouth piece.  My question now is, will you have a check valve to
>>> make it easier.
>>> Hank--------------------------------------------
>>> On Wed, 4/22/15, James Frankland via Personal_Submersibles <
>>> personal_submersibles at psubs.org> wrote:
>>>
>>>  Subject: Re: [PSUBS-MAILIST] Manual Scrubber.
>>>  To: "Personal Submersibles General Discussion" <
>>> personal_submersibles at psubs.org>
>>>  Received: Wednesday, April 22, 2015, 7:11 AM
>>>
>>>  Ok
>>>  thanks.  Im going to do some experiments at the
>>>  weekend.
>>>  On 22 April 2015 at 11:28,
>>>  Antoine Delafargue via Personal_Submersibles <
>>> personal_submersibles at psubs.org>
>>>  wrote:
>>>  Hi
>>>  James,
>>>
>>>  There is a fan inside the scrubber at the base, but it
>>>  also work without turning the fan on. We see several
>>>  advantages in the full manual mode: power saving, robust in
>>>  case of power failure, and also better scrubbing.
>>>
>>>  regards,
>>>  Antoine
>>>
>>>  On Wed, Apr 22, 2015
>>>  at 11:13 AM, James Frankland via Personal_Submersibles <
>>> personal_submersibles at psubs.org>
>>>  wrote:
>>>
>>>
>>>  Ahhh, hi Antoine.  Sorry, I didn't
>>>  realise it was you the Pilot fish guy.  Ive seen the pics
>>>  of the scrubber with the counter lung.  Is there a fan or
>>>  anything drawing the air through or is that all
>>>  manual?
>>>
>>>
>>>
>>>
>>>  On 22 April 2015 at
>>>  09:53, Antoine Delafargue via Personal_Submersibles <
>>> personal_submersibles at psubs.org>
>>>  wrote:
>>>
>>>
>>>  Hi James,
>>>
>>>  no I have not yet, but you ll find pictures on the
>>>  Pilot Fish Project facebook page, March 10th post.
>>>
>>>  I have a scrubber made from Emile, and as Emile
>>>  said, when you exhale through it the reaction is much more
>>>  efficient.
>>>  You may or may not need an intermediate counterlung to
>>>  buffer the flow, depending on the breathing
>>>  resistance.
>>>
>>>  regards,
>>>  antoine
>>>
>>>
>>>
>>>  On Wed, Apr 22, 2015
>>>  at 10:42 AM, James Frankland via Personal_Submersibles <
>>> personal_submersibles at psubs.org>
>>>  wrote:
>>>
>>>
>>>
>>>  Exhale it is.  I'll give it a test.  Thanks
>>>  guys.
>>>
>>>  Antoine, did you send a picture?  I didn't get
>>>  it.
>>>  Thanks
>>>  James
>>>
>>>
>>>
>>>
>>>  On 22 April 2015 at 07:09, Emile van Essen via
>>>  Personal_Submersibles <personal_submersibles at psubs.org>
>>>  wrote:
>>>
>>>
>>>
>>>
>>>
>>>
>>>  James,
>>>
>>>  Blowing
>>>  is the best . You exhale warm , moist, and CO2 rich air
>>>  through the scrubber.
>>>  Air
>>>  exits with almost 0 % CO2 !
>>>
>>>
>>>  Emile
>>>
>>>
>>>
>>>
>>>
>>>   Van:
>>>  Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org]
>>>  Namens James
>>>  Frankland via Personal_Submersibles
>>>  Verzonden: dinsdag 21
>>>  april 2015 23:20
>>>  Aan: personal_submersibles at psubs.org
>>>  Onderwerp:
>>>  [PSUBS-MAILIST] Manual
>>>  Scrubber.
>>>
>>>
>>>
>>>
>>>
>>>  Hi
>>>  all,
>>>
>>>
>>>
>>>  Im rigging up
>>>  my scrubber with a mouthpiece for manual use.  I have one
>>>  of Emile's scrubbers so the fan is at the bottom pushing
>>>  air up and I have a hose at the top that directs scrubbed
>>>  air into the tower.
>>>
>>>
>>>
>>>  All i'm
>>>  going to do is attach a mouthpiece to the end of the
>>>  hose.
>>>
>>>
>>>
>>>  With the fan
>>>  off, should I be breathing in, sucking air through the
>>>  scrubber?  or blowing exhaled air into the
>>>  scrubber?
>>>
>>>
>>>
>>>  Plus im
>>>  thinking that if im breathing in, I should maybe have some
>>>  sort of particulate filter to stop
>>>  dust?
>>>
>>>
>>>
>>>  How it is now
>>>  without a mouthpiece.
>>>
>>>
>>>
>>>  http://www.guernseysubmarine.com/Extended_files/Page24298.htm
>>>
>>>
>>>
>>>  Any
>>>  suggestions?
>>>
>>>  Many
>>>  thanks
>>>
>>>  James
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>>
>>
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