• Dave.@aussie.zone
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    11 days ago

    Perhaps the pressure difference between a column of fresh water and the equivalent height of salty water is enough to tip the scales.

    • CEbbinghaus@lemmy.world
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      11 days ago

      Absolutely would be. Additionally they can use far more efficient ways of pumping liquid (such as bubble pumps). Since they only need to decrease the pressure inside enough to allow for the ambient pressure to force water through the filter.