@ Beau388
At 70 degrF from the 100psi overpressure, is 114.5 psi absolute pressure the part of the gas-shaped water can maximally be 0.36 psi.
So at 25 degrF the 91 psi can maximally go down to 90.64 psi and not 84
At 25 degr F partial pressure of watergas is 0.06.
So 100% humidity then is 0.06 psi for part of the water as gas.
I read these values from a spreadsheet I once found, and I added the coloms for psi and degr F.
Liquid water takes about 1/1000 of the space as water as gas. Ice probably a bit more space , say 1/950 .
So practically no space .
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