• orclev@lemmy.world
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      16 天前

      Might depend on the source water. The article mentions it’s used for water softening so if you’re starting with water that has low mineral content maybe it’s an unnecessary step.

    • YerbaYerba@lemmy.zip
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      16 天前

      It prevents calcium carbonate buildup on the RO membrane. The acid is added to the incoming sea water to keep it slightly acidic.