Hard water refers to water that is extremely high in mineral content. These minerals mainly consists of calcium and magnesium, though other minerals such as bicarbonate and sulfates are also common. If you believe that your water may have hardness in it, the most effective way to make sure whether or not your water is hard, is to do the lather/frost test. Substance like soaps lathers easily on soft water, but not in hard water, so if you try to lather some soap or tooth paste under the water you would be able to tell whether or not it's hard.
The World Health Organization has concluded that "there does not appear to be any convincing evidence that water hardness causes adverse health effects in humans." Though there have been a few studies that show a weak connection between water hardness and cardiovascular disease, but according to the World Health Organization none of those evidences are conclusive enough to deem water hardness a serious threat. How ever, since soaps does not lather on it, it can not be used for any washing or cleaning purposes and a lot of people would probably like to play it safe and not take any risks with their health. For these reasons a lot of people would probably like to eliminate the hardness from their water.
INSTALLING A WATER SOFTENER
The most effective way to eliminate the hardness from the water is to use a water softener. A water softener works on the principle of cation or ion exchange, where the calcium and magnesium ions from the hard water are exchanged for sodium and potassium ions, thus effectively reducing the hardness minerals to a tolerable level. This system uses beads made out of ion exchange resins that are recharged with sodium chloride. The water passes through and around the beads with the hardness minerals being absorbed and displacing the sodium ions. When the beads no longer have any sodium left, it can no longer soften water and needs to be recharged. This is done by flushing, often back-flushing the system with salt water. Potassium Chloride can also be used for the recharging; it will replace the hardness ions with potassium, resulting in sodium free water.
One of the Most Popular Solutions for Hard Water! INSTALLING A WATER SOFTENER
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