[PSUBS-MAILIST] VBT for K-350

[jimtoddpsub at aol.com]

Bob et al,

What's the standard wall thickness on the K-boat VBT?  Is it approved procedure to weld extra material at the [water valve/drain plug] site before threading it?  If so, it seems it would be possible to have the insert flush with the interior wall.  At least it wouldn't project where it could interfere with draining of the tank and would make it easier to flush.

Thanks,
Jim




-----Original Message-----
From: Bob Travis <bobtravis at comcast.net>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Sent: Tue, Dec 17, 2013 4:26 pm
Subject: Re: [PSUBS-MAILIST] VBT for K-350



Thanks for the input!!  I think I'm going to try a stainless plug. I'll let you know how it goes. 

Sent from my iPhone

On Dec 17, 2013, at 6:58 AM, James Frankland <jamesf at guernseysubmarine.com> wrote:



This has given me an idea.  Ive got loads of this fluid film stuff.  Im tempted to pour some into the tank to give it a bit of protection over the winter.  Might have to experiment with it a bit first to make sure its not going to clog it up.
 
http://www.fluid-film.com/products/properties_liquida.html


On 17 December 2013 14:24, Jon Wallace <jonw at psubs.org> wrote:


I highly encourage you to modify it.  The one piece of the K600 that is obviously not useable is the VBT (identical to the K-350).  The plug suggested by Dan is a good option but with either an electric or hydraulic controlled valve you could modify the inflow/outflow from the middle of the end-cap to the bottom of the tank.  I also wonder if instead of an FRP tank you could modify an AL-80 or AL-100 scuba tank to perform the same function.  Unfortunately they are not large volume and would not produce a lot of buoyancy.

Jon 



On 12/17/2013 1:10 AM, Bob Travis wrote:

I'm about ready to assemble my VBT and have noticed that there will be about an inch of water left inside after it has been fully blown.  I looked through the archives and can't find any discussion about water remaining in the tank. Is this a bad thing?  All the photos of all the other K-350's that I've looked at don't have any way of draining the last bit of water out of the tank. Can anyone give me some advise here?  I don't like the idea of water remaining in it long term.

Any advise would be greatly appreciated.

Thanks!

Bob
Sent from my iPhone
_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles


_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles





_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles



_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles

 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20131217/f1efe454/attachment.html>