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 Hi Frank, Love the update and keeping tabs on you
with the forum.  When you are shaping the fairings over the buoyancy tanks
I see you are using foam.  Are you removing that when you are finished or
how are you approaching that.  Also are your MBTs able to withstand any
pressure at all.  I am designing a couple of valves, one is a pilot
operated venting valve with an equivalvent diameter of 1.75” and the
other valve is a relief valve which will also be optionally pilot operated. 
Planning on the relief working at 1-2 psig.  The idea of the vent valves
is to stop having to have the valve sitting way up high. All being done with a
toggle switch.  Will have manual option as well for backup. Cheers, Hugh From:
owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of ShellyDalg@aol.com Hi guys. Here's an updated sketch of my
project. The numbers are rough, and the art work is not so good, but it is a
little closer to what it really looks like. The old sketch was grossly out of
scale. Frank D. 
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