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Hi Dean,
Copied below is the part I didn't understand. If you
pump [it] up to 150 psi, that seemed to imply a tank. What is holding the
150 psi if not a tank? It could be a very small one integrated in the pump
housing.
The pump could only over-pressure the cabin at depth if it
were drawing air from some source other than the air within the cabin.
Drawing air in one end of the pump and out the other would not create any
additional pressure within the cabin.
In order to overpressure at depth (to lessen the pressure
differential at a given depth) you have to introduce more air (more molecules)
into the cabin or heat the same amount of air.
Best regards,
Jim
In a message dated 1/5/2011 10:56:04 A.M. Central Standard Time,
Recon1st@aol.com writes:
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