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2. Water softening - Wikipedia

   en.wikipedia.org/wiki/Water_softening

   Conventional water-softening appliances intended for household use depend on an ion-exchange resin in which "hardness ions"—mainly Ca 2+ and Mg 2+ —are exchanged for sodium ions. [7] As described by NSF/ANSI Standard 44 , [ 8 ] ion-exchange devices reduce the hardness by replacing magnesium and calcium (Mg 2+ and Ca 2+ ) with sodium or ...

3. This Common Water Problem Might Be Making Your Home Dirtier - AOL

   www.aol.com/common-water-problem-might-making...

   Soft water: 0-60 mg/L. Moderately hard water: 61-120 mg/L ... One way to test for hard water at home is with dishwashing liquid and water. Add one cup of water from the kitchen faucet to a clean ...

4. Dishwasher - Wikipedia

   en.wikipedia.org/wiki/Dishwasher

   A dishwasher containing clean dishes. A dishwasher is a machine that is used to clean dishware, cookware, and cutlery automatically. Unlike manual dishwashing, which relies on physical scrubbing to remove soiling, the mechanical dishwasher cleans by spraying hot water, typically between 45 and 75 °C (110 and 170 °F), at the dishes, with lower temperatures of water used for delicate items.

5. Lime softening - Wikipedia

   en.wikipedia.org/wiki/Lime_softening

   Lime softening (also known as lime buttering, lime-soda treatment, or Clark's process) [1] is a type of water treatment used for water softening, which uses the addition of limewater (calcium hydroxide) to remove hardness (deposits of calcium and magnesium salts) by precipitation.

6. Small appliance - Wikipedia

   en.wikipedia.org/wiki/Small_appliance

   Small appliances in a kitchen: a food processor, a waffle iron, a coffee maker, and an electric kettle Glowing filaments of a modern 2-slice toaster. A small domestic appliance, also known as a small electric appliance or minor appliance or simply a small appliance, small domestic or small electric, [1] is a portable or semi-portable machine, generally used on table-tops, counter-tops or other ...

7. Water purification - Wikipedia

   en.wikipedia.org/wiki/Water_purification

   Water passing through activated carbon is commonly used in municipal regions with organic contamination, taste or odors. Many household water filters and fish tanks use activated carbon filters to purify water. Household filters for drinking water sometimes contain silver as metallic silver nanoparticle. If water is held in the carbon block for ...