Hardness is a property of water that is caused by the presence of magnesium and calcium salts, in some cases with a combination of iron salts. At the same time, hard water, which can be disposed of with the help of water filters , which can be bought at http://www.kupitfilter.ru/, is divided into permanent and temporary.
Temporary stiffness
Temporary hardness in water can cause an increase in magnesium and calcium bicarbonates. During boiling, these impurities settle in the form of scale. Directly under the very phrase "hard water" is meant just a temporary hardness.
The bicarbonate or temporary hardness of water, if its level is high enough, can cause a violation of the acid and alkaline balance in the human body, thereby increasing the content of alkaline compounds. Such water has a pH of more than 7, which forces the human stomach to produce more acid, thereby causing all kinds of disturbances in its vital functions. Also, by "binding" nutrients that are in food, such water greatly overloads the digestive organs.
In "hard" water food is much less digestible, while most of the nutrients, together with these salts, form compounds that are not assimilated by the body. This liquid can create additional stress on your kidneys, and in some cases, even lead to the appearance of stones in them.
That is why it is highly undesirable to use "hard" water for cooking, especially if it is intended for a child, since even prolonged boiling is not able to rid it of such salts.
Constant stiffness
Constant rigidity is not capable of harming a person. Rigidity is a property of the internal structure. This structure is due to the presence of magnesium and calcium salts in it, such as sulfates, nitrates, and so on, and is a source for the body to obtain such important trace elements as magnesium and calcium.
Skin irritation
If such water gets on the skin, a person may begin to destroy the natural fatty film, which is necessary to protect the skin from the harmful effects of the environment. In addition, this water can clog the pores of the skin. The first signs of increased stiffness appear after taking a shower, a characteristic "squeak" appears on your hair or skin. The “dampness” of the skin, which can irritate many people and that occurs after using soft water, is actually a sign that the protective film on your skin is intact and intact. It is she who causes the skin to slip. To deal with the problem, you should use hard water and repair the damage to the skin coverage with lotion, moisturizer and softener and other tricks in order to restore the skin's protection.