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<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>Always good to have vulnerable
parts protected.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>I have my OPV and
penplates on top of the hull under the deck. Having those above the surfaced WL
is another advantage.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>At the OPV of my sub is a
hand knob to equalize pressure from the outside ( In case there is a vacuum
inside due to a temperature drop)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>Any Scuba divers around
should not know about this knob as the can make your dive a wet one…<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>Emile<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>Van:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
Personal_Submersibles [mailto:personal_submersibles-bounces@psubs.org] <b><span
style='font-weight:bold'>Namens </span></b>James Frankland via
Personal_Submersibles<br>
<b><span style='font-weight:bold'>Verzonden:</span></b> donderdag 15 januari
2015 17:02<br>
<b><span style='font-weight:bold'>Aan:</span></b> Personal Submersibles General
Discussion<br>
<b><span style='font-weight:bold'>Onderwerp:</span></b> Re: [PSUBS-MAILIST]
Snorkel</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Hi Alec,<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>What size are the holes? <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Something else that worries me slightly with these sort of valves is
that its just possible for the mushroom top to get knocked off,
particularly where I have mine. Unlikely I know, but would be nice
to have a protection bar of some sort, or even better, a stop valve on the
inside.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Anyway, a modification for another day that one.<br>
James<o:p></o:p></span></font></p>
</div>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On 15 January 2015 at 15:19, Brian Cox via Personal_Submersibles <<a
href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>>
wrote:<o:p></o:p></span></font></p>
<div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks Alec, What pressure does the spring hold?<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Brian<br>
<br>
--- <a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>
wrote:<br>
<br>
From: Alec Smyth via Personal_Submersibles <<a
href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br>
To: Personal Submersibles General Discussion <<a
href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br>
Subject: Re: [PSUBS-MAILIST] Snorkel<br>
Date: Thu, 15 Jan 2015 10:08:47 -0500<o:p></o:p></span></font></p>
</div>
<div>
<div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Here you go... taken apart so you can see it better. I
haven't done my preseason cleanup, so there's little bits of surface rust.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>On Wed, Jan 14, 2015 at 8:55 PM, Brian Cox via
Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org"
target="_blank">personal_submersibles@psubs.org</a>> wrote:<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Any pictures ?<br>
<br>
--- <a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>
wrote:<br>
<br>
From: Private via Personal_Submersibles <<a
href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br>
To: Personal Submersibles General Discussion <<a
href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br>
Subject: Re: [PSUBS-MAILIST] Snorkel<br>
Date: Wed, 14 Jan 2015 19:58:57 -0500<o:p></o:p></span></font></p>
<div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Pretty much the same as Emile's. I made a disk with lots of
holes in it and a spring- loaded cap on the outside. A wing nut inside the sub
allows you to adjust the cracking pressure, and "manual override"
means pressing on the stem to make the cap on the outside unseat. We're talking
just a few hours work to make one of these, it's really simple.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>For those who might not have Kittredge's book, there's a
story in there that is relevant. Kittredge had been tooling around for a while
on the bottom and there was a very slight air leak in the cabin that he was
unaware of. He was about to break surface when there was a big womp and next
thing he found himself outside the sub swimming, and the sub on the bottom. The
K250 dome had blown out and he'd gone through behind it. It was his only
accident. Bottom line... Always have an OP valve and a means of monitoring
cabin pressure.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Best,<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Alec<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
</div>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><br>
On Jan 14, 2015, at 7:25 PM, Brian Cox via Personal_Submersibles <<a
href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>>
wrote:<o:p></o:p></span></font></p>
</div>
<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'>
<div>
<div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Alec , what is your over pressure valve?<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Brian<br>
<br>
--- <a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>
wrote:<br>
<br>
From: Private via Personal_Submersibles <<a
href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br>
To: Personal Submersibles General Discussion <<a
href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br>
Subject: Re: [PSUBS-MAILIST] Snorkel<br>
Date: Wed, 14 Jan 2015 19:02:45 -0500<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi Sean,<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>It's extremely easy to relieve negative pressure... You just
press the plunger and can do it with one finger. I do this almost every time
before opening the hatch, as a small negative pressure is SOP.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Best,<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Alec<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
</div>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><br>
On Jan 14, 2015, at 6:57 PM, Sean T Stevenson via Personal_Submersibles <<a
href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>>
wrote:<o:p></o:p></span></font></p>
</div>
<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'>
<div>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Is
it always possible to manually actuate the valve if you have a negative
differential pressure? I always presumed that a ball or needle valve
would be necessary to equalize pressure on either side of a hatch before
opening, because such a valve accommodates pressure differences in either
direction. With the overpressure valve, in such a situation you need to
overcome this difference in addition to the spring preload. That, or I guess
you could just bleed some air or oxygen into the cabin.<o:p></o:p></span></font></p>
</div>
<p style='margin-bottom:12.0pt'><font size=2 face=Arial><span style='font-size:
10.0pt;font-family:Arial'>Sean<br>
<br>
<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>On January 14, 2015 12:36:36 PM MST, Alan James via
Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org"
target="_blank">personal_submersibles@psubs.org</a>> wrote:<o:p></o:p></span></font></p>
<div>
<div>
<p class=MsoNormal style='background:white'><font size=3 color=black
face=Helvetica><span style='font-size:12.0pt;font-family:Helvetica;color:black'>Brian,<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='background:white'><font size=3 color=black
face=Helvetica><span style='font-size:12.0pt;font-family:Helvetica;color:black'>I
seem to remember you can manually operate Emile's<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='background:white'><font size=3 color=black
face=Helvetica><span style='font-size:12.0pt;font-family:Helvetica;color:black'>overpressure
valve; and it is operating procedure to press<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='background:white'><font size=3 color=black
face=Helvetica><span style='font-size:12.0pt;font-family:Helvetica;color:black'>it
to relieve the remaining pressure before opening the hatch.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='background:white'><font size=3 color=black
face=Helvetica><span style='font-size:12.0pt;font-family:Helvetica;color:black'>If
you are looking for an off the shelf solution, make sure<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='background:white'><font size=3 color=black
face=Helvetica><span style='font-size:12.0pt;font-family:Helvetica;color:black'>you
can do that.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='background:white'><font size=3 color=black
face=Helvetica><span style='font-size:12.0pt;font-family:Helvetica;color:black'>Alan<o:p></o:p></span></font></p>
</div>
<p class=MsoNormal style='background:white'><font size=3 color=black
face=Helvetica><span style='font-size:12.0pt;font-family:Helvetica;color:black'><o:p> </o:p></span></font></p>
</div>
</div>
<div class=MsoNormal align=center style='text-align:center'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>
<hr size=1 width="100%" align=center>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;font-weight:bold'>From:</span></font></b><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> Brian Cox via
Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org"
target="_blank">personal_submersibles@psubs.org</a>><br>
<b><span style='font-weight:bold'>To:</span></b> Personal Submersibles General
Discussion <<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>>
<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, January 15, 2015
6:11 AM<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [PSUBS-MAILIST]
Snorkel<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<div>
<div>
<div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I don't see where they list the pressure limit on it.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Brian<br>
<br>
--- <a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>
wrote:<br>
<br>
From: James Frankland via Personal_Submersibles <<a
href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br>
To: Personal Submersibles General Discussion <<a
href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br>
Subject: Re: [PSUBS-MAILIST] Snorkel<br>
Date: Wed, 14 Jan 2015 16:31:56 +0000<o:p></o:p></span></font></p>
</div>
<div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>what about something like this? I only just googled it
so would need research. Don't quote me on it!<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><a
href="http://www.haitima.com.tw/valve/check-valve/check-valve-2026.htm"
target="_blank">http://www.haitima.com.tw/valve/check-valve/check-valve-2026.htm</a><o:p></o:p></span></font></p>
</div>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>On 14 January 2015 at 15:55, Brian Cox via
Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org"
target="_blank">personal_submersibles@psubs.org</a>> wrote:<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
</div>
<div>
<div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Is there an off the shelf over pressure valve that I can
get?<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Brian<br>
<br>
--- <a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>
wrote:<br>
<br>
From: James Frankland via Personal_Submersibles <<a
href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br>
To: Personal Submersibles General Discussion <<a
href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br>
Subject: Re: [PSUBS-MAILIS! T] Snorkel<br>
Date: Wed, 14 Jan 2015 13:58:24 +0000<o:p></o:p></span></font></p>
</div>
<div>
<div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Yes, my OP valve does not have enough holes. I
have a job over the winter to add more or drill existing holes
bigger. <o:p></o:p></span></font></p>
</div>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>On 14 January 2015 at 13:04, <st1:PersonName
ProductID="Emile van Essen" w:st="on">Emile van Essen</st1:PersonName> via
Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org"
target="_blank">personal_submersibles@psubs.org</a>> wrote:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Mark, All.<br>
<br>
Mind the area is big enough. The valve in the attachment is designed for a<br>
3000 Kg sub. But even then it is to small if you surface too quick in case<br>
of massive overpressure.<br>
Cracking pressure: 25-75 mBar.<br>
<br>
<br>
Best regards, Emile<br>
<br>
-----Oorspronkelijk bericht-----<br>
Van: Personal_Submersibles [mailto:<a
href="mailto:personal_submersibles-bounces@psubs.org" target="_blank">personal_submersibles-bounces@psubs.org</a>]<br>
Namens Mark via Personal_Submersibles<br>
Verzonden: dinsdag 13 januari 2015 13:12<br>
Aan: Personal Submersibles General Discussion<br>
Onderwerp: Re: [PSUBS-MAILIST] Snorkel<o:p></o:p></span></font></p>
<div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><br>
Since we are discussing over-pressure valves, can you recommend a make and<br>
model, or describe its specifications?<br>
<br>
Regards,<br>
<br>
Mark...<br>
<br>
Sent from iPhone.<br>
<br>
> On Jan 12, 2015, at 7:06 PM, Pete Niedermayr via Personal_Submersibles<br>
<<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>>
wrote:<br>
><br>
> Scott, I see you have an overpressure valve in place of the snorkel .<br>
Whats that on the other side ?<br>
><br>
> Pete ?<br>
> --------------------------------------------<br>
> On Mon, 1/12/15, via Personal_Submersibles<br>
<<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>>
wrote:<br>
><br>
> Subject: Re: [PSUBS-MAILIST] Snorkel<br>
> To: "Personal Submersibles General Discussion"<br>
<<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br>
> Date: Monday, January 12, 2015, 5:09 PM<br>
><br>
> I<br>
> would recommend a cabin overpressure valve instead. It is a<br>
> mushroom valve. You can see pics on my sub page. Alec<br>
> did the same thing.<br>
><br>
> Thanks,<br>
> Scott Waters<br>
><br>
><br>
> -------- Original<br>
> Message --------<br>
> Subject: [PSUBS-MAILIST] Snorkel<br>
> From: Pete Niedermayr via Personal_Submersibles<br>
> <<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br>
> Date: Mon, January 12, 2015 3:58 pm<br>
> To: <a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a><br>
><br>
> I have a set of K 350 plans that I'm using as a<br>
> reference for my own design. I'm using the conning tower<br>
> plans pretty much as per. The question I do have is. Snorkel<br>
> or no snorkel ? On the one hand I can see how it would be<br>
> useful have. On the other hand no other design seems to have<br>
> one. What are your opinions? Snorkel or no snorkel?<br>
><br>
> Pete<br>
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