Both reverse osmosis and a water softener can be strong options for removing calcium from your water supply, but a water softener is probably the most cost-effective and efficient way to do so.
Boil a pot of water for 10 minutes and then let it cool. When you boil water you will remove some types of calcium mineral deposits, known as carbonate hardness, but not all types. Carbonate hardness that you can boil out of drinking water includes calcium carbonate, calcium bicarbonate, and calcium hydroxide.
Reverse Osmosis will remove 95% - 98% of the calcium in the water. Electrodialysis and Ultrafiltration also will remove calcium. Calcium can also be removed with the hydrogen form cation exchanger portion of a deionizer system.
Two of the most effective substances are lemon juice and ordinary vinegar. Lemon juice is usually the best (and will also leave a lovely smell behind). Stronger pickling vinegar and lime juice are both even more acidic and can be used for really stubborn deposits.
Baking soda and vinegar are both natural disinfectants that can be used to turn hard water to soft water. They eliminate the scaly coating that occurs in hard water as a result of mineral deposits. To use baking soda, fill a tub halfway with water and add half a cup of baking soda to meet the requirement.
Soften your kitchen water by boiling: Boiling will make the salts in water sink to the bottom of the boiler. You can then scoop out this water or pour the water in another pot leaving the deposits in the end. Install an ion-exchange filter to your kitchen faucet or use a water pitcher filter.
Hard water can be softened by adding sodium carbonate (washing soda) or by passing the water through an ion-exchange column.
Muriatic acid is a strong hydrochloric-based acid, that is a great descaler. Because of the intensity of this acid, it has the ability to remove severe lime and calcium deposits found in pools and toilets.
As previously mentioned, baking soda does a bang-up job at dissolving calcium deposits left behind from hard water, but this pantry staple doesn't act alone. By introducing an acid (i.e., white vinegar), a chemical reaction takes place that may be short-lived, but highly effective.
BRITA filters do not filter out all calcium or magnesium. Instead, they work by reducing the carbonate hardness of the water, so that calcium carbonate is less likely to develop. So you can still enjoy healthy minerals.
It can be removed by using a water softener which works on the principle of ion exchange in which calcium and magnesium ions are exchanged with sodium or potassium ions, reducing the concentration of hardness minerals to tolerable levels and thus making the water softer and giving it a smoother feeling [2].
The best filters for hard water are activated carbon filters, reverse osmosis filters, or water softeners. However, reverse osmosis filters remove all compounds and minerals from the water, so you would need to remineralize your water to add calcium and magnesium.
Water Purifier is a great method to treat hard water at home. RO Water Purifier dissolves all the minerals in hard water and kill all the bacteria. Whereas, UF Water Purifier ensures that all the unwanted minerals like Zinc, Lead are filtered while purifying hard water for drinking.
Are PUR pitchers certified to fix hard water and limescale issues? PUR pitcher filters are not certified to reduce water hardness to normal levels, or to remove calcium and magnesium, which contribute the most to hardness.
As water moves through soil and rock, it dissolves very small amounts of minerals and holds them in solution. Dissolved calcium and magnesium are the two most common minerals that make water “hard”. The degree of hardness becomes greater as the calcium and magnesium content increases.
Hydrochloric acid can be used to dissolve calcium carbonate and iron sulfide scales.
DO not use CLR on natural stone or marble, terrazzo, colored grout, painted or metallic glazed surfaces, plastic laminates, Formica, aluminum, steam irons, leaded crystal, refinished tubs or any damaged or cracked surface. CLR may etch older sinks, tubs and tiles. CLR is corrosive.
Vinegar. Because vinegar is acidic, it's one of the best hard water treatment options for clearing out scale buildup in your tub and sink. You can even use it in your appliances, like your coffee maker, dishwasher, and washing machine, to help them function better.
The most common way to treat hard water is with a Water Softener. This is a water filtration system that filters out the hard water minerals in your water. Was the water travels into the filter, it passes through a bed of resin that traps the calcium and magnesium, which are then replaced with sodium ions.
The process of removing the dissolved magnesium and calcium salts causing hardness in water is called softening. For softening, chemicals such as sodium carbonate (Na2CO3), slaked lime (Ca(OH)2), etc can be used. Also, sodium chloride (NaCl) can be used to soften hard water.