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by notanote
1840 days ago
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The salt compartment is usually on the floor of the dishwasher. The salt is used to soften the water. Not directly, but as the source of sodium ions for an ion-exchange resin. [1] It’s not the same as the rinse-aid, which reduces the surface tension of the water so droplets won’t stay on the dishes (i.e. a surfactant). [1] https://en.wikipedia.org/wiki/Ion-exchange_resin#Water_softe... |
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