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Another device motivated by more psychological than real reasons is the use of distilled water, dictated by qualms about calcareous deposits for the evaporation of water once the washing is finished. A [http://forum.fountainpen.it/viewtopic.php?f=12&t=8299&p=105281&hilit=carbonato#p105281 quick calculation] on the probable and expected calcareous deposit, shows that to deposit one gram of calcium carbonate you need numbers in the order of 30000 drying and evaporation cycles, even with very limy water.

Another device motivated by more psychological than real reasons is the use of distilled water, dictated by qualms about calcareous deposits for the evaporation of water once the washing is finished. A [http://forum.fountainpen.it/viewtopic.php?f=12&t=8299&p=105281&hilit=carbonato#p105281 quick calculation] on the probable and expected calcareous deposit, shows that to deposit one gram of calcium carbonate you need numbers in the order of 30000 drying and evaporation cycles, even with very limy water.