<font color='black' size='2' face='arial'>
<div><font size="3">Thanks, James. I had missed Dan's advice on welding in a stainless steel bushing.</font></div>
<div><font face="Arial, Helvetica, sans-serif" size="3">-Jim</font></div>
<div><font size="3"></font> </div>
<div> </div>
<div></div>
<div></div>
<div style="color: black; font-family: arial,helvetica; font-size: 10pt;">-----Original Message-----<br>
From: James Frankland <jamesf@guernseysubmarine.com><br>
To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br>
Sent: Wed, Dec 18, 2013 4:01 am<br>
Subject: Re: [PSUBS-MAILIST] VBT for K-350<br>
<br>
<div id="AOLMsgPart_2_1e84fd70-8107-400b-8490-5ae3b3c69769">
Its sch40 pipe, which for 10" pipe is 0.37", about 9mm.<br>
<br>
<div class="gmail_quote">On 18 December 2013 04:39, Jon Wallace <span dir="ltr"><<a href="mailto:jon.wallace@yahoo.com">jon.wallace@yahoo.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.8ex; padding-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: solid;">STD pipe...but I don't recall the thickness off the top of my head.<br>
<br>
--------------------------------------------<br>
<div class="im">On Tue, 12/17/13, <a href="mailto:jimtoddpsub@aol.com">jimtoddpsub@aol.com</a> <<a href="mailto:jimtoddpsub@aol.com">jimtoddpsub@aol.com</a>> wrote:<br>
<br>
Subject: Re: [PSUBS-MAILIST] VBT for K-350<br>
</div>
To: <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br>
Date: Tuesday, December 17, 2013, 10:40 PM<br>
<div>
<div class="h5"><br>
<br>
Bob et al,<br>
<br>
<br>
<br>
What's the standard wall thickness<br>
on the K-boat VBT? Is it approved procedure to weld<br>
extra material at the [water valve/drain plug] site before<br>
threading it? If so, it seems it would be possible to<br>
have the insert flush with the interior wall. At least<br>
it wouldn't project where it could interfere with<br>
draining of the tank and would make it easier to<br>
flush.<br>
<br>
<br>
<br>
Thanks,<br>
<br>
Jim<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
-----Original Message-----<br>
<br>
From: Bob Travis <<a href="mailto:bobtravis@comcast.net">bobtravis@comcast.net</a>><br>
<br>
To: Personal Submersibles General Discussion<br>
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
<br>
Sent: Tue, Dec 17, 2013 4:26 pm<br>
<br>
Subject: Re: [PSUBS-MAILIST] VBT for K-350<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
Thanks for the input!! I think I'm going to<br>
try a stainless plug. I'll let you know how it<br>
goes. <br>
<br>
<br>
<br>
Sent from my iPhone<br>
<br>
<br>
<br>
On Dec 17, 2013, at 6:58 AM, James Frankland <<a href="mailto:jamesf@guernseysubmarine.com">jamesf@guernseysubmarine.com</a>><br>
wrote:<br>
<br>
<br>
<br>
<br>
<br>
<br>
This has given me an idea. Ive got loads of this<br>
fluid film stuff. Im tempted to pour some into the<br>
tank to give it a bit of protection over the winter. <br>
Might have to experiment with it a bit first to make sure<br>
its not going to clog it up.<br>
<br>
<br>
<br>
<br>
<br>
<br>
<a href="http://www.fluid-film.com/products/properties_liquida.html" target="_blank">http://www.fluid-film.com/products/properties_liquida.html</a><br>
<br>
<br>
<br>
<br>
<br>
<br>
On 17 December 2013<br>
14:24, Jon Wallace <<a href="mailto:jonw@psubs.org">jonw@psubs.org</a>><br>
wrote:<br>
<br>
<br>
<br>
<br>
I highly encourage you to modify it. The one piece of<br>
the K600 that is obviously not useable is the VBT (identical<br>
to the K-350). The plug suggested by Dan is a good<br>
option but with either an electric or hydraulic controlled<br>
valve you could modify the inflow/outflow from the middle of<br>
the end-cap to the bottom of the tank. I also wonder<br>
if instead of an FRP tank you could modify an AL-80 or<br>
AL-100 scuba tank to perform the same function.<br>
Unfortunately they are not large volume and would not<br>
produce a lot of buoyancy.<br>
<br>
<br>
<br>
<br>
Jon<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
On 12/17/2013 1:10 AM, Bob Travis wrote:<br>
<br>
<br>
I'm<br>
about ready to assemble my VBT and have noticed that there<br>
will be about an inch of water left inside after it has been<br>
fully blown. I looked through the archives and<br>
can't find any discussion about water remaining in the<br>
tank. Is this a bad thing? All the photos of all the<br>
other K-350's that I've looked at don't have any<br>
way of draining the last bit of water out of the tank. Can<br>
anyone give me some advise here? I don't like the<br>
idea of water remaining in it long term.<br>
<br>
<br>
<br>
<br>
Any advise would be greatly appreciated.<br>
<br>
<br>
<br>
Thanks!<br>
<br>
<br>
<br>
Bob<br>
<br>
Sent from my iPhone<br>
<br>
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<pre style="font-size: 9pt;"><tt>_______________________________________________
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