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The determine the pressure at 17 feet under sea water (FSW) you need to calculate the pressure at sea level which is 14.7psi. Then add .0447 per foot under sea level. S0 14.7psi added to 17*(.0445). it would equal 22.265 psi or the absolute pressure.
Water pressure increases by approximately 1 bar for every 10 meters of depth in freshwater. At a depth of 10 meters, the water pressure would be about 1 bar, in addition to the atmospheric pressure at the surface, which is roughly 1 bar as well. Therefore, the total pressure at 10 meters depth would be about 2 bars.
10 meters of water depth equals about 1 atmosphere.
4.3psi assuming fresh water
Answer: 150 meters is just under 500 feet (492.125 feet).