Alan, Many of the designs carry some tanks inside of the sub so are at 1 atms. pressure thus 294 fsw. I believe that is what Frank was discussing for his design and what I was responding to. R/J2 Resepectfully, Jay K. Jeffries Andros Is., Bahamas Save the whales, collect the whole set. From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Alan James Hi Jay, The first stage regulator is set to round 130 psi above ambient so blow ability at 300ft shouldn't be a problem. Thanks for the story Vance. I thought afterward that I will have to bolt my motors on so I can drop them from the inside.
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