We all know that there are many types of water purifiers, and the water purified by each type of water purifier is different. According to the degree of purification, the purified water can be divided into purified water, pure water and soft water. What is the difference between these three water qualities? Xiaobian will tell you all today!

water purification

Water that does not contain any harmful substances, antibiotics, residual chlorine, heavy metals, inorganic salts, any additives and various impurities is called purified water.

advantage:

There are many kinds of water purifiers that produce purified water, including sand filtration, activated carbon, ultrafiltration, etc., which can purify the water source to a certain extent, remove suspended solids in the water and organic compounds, inorganic compounds, heavy metals, bacteria, etc. harmful to human body, retain trace elements and minerals required by human body, and can drink directly.

Insufficient:

Although the water purifier can purify the water source to a certain extent and remove sediment and rust, it can not completely remove scale, bacteria and viruses. It belongs to primary filtration. A more advanced water purifier can only remove some bacteria, viruses and heavy metals, which can not reach the purification level of pure water, and can not guarantee the water quality of seriously polluted water sources.

cost:

There are many kinds of water purifiers. The price increases with the degree of purification function, and the cheaper one is nearly 1000 yuan. If the water purifier is installed, there will be a cost for replacing the filter element every year. The service life of the filter element completely depends on the local water quality, water pressure and water consumption. Therefore, when purchasing the water purifier, the consumption cost of replacing the filter element in the future should be taken into account.

Applicable:

The purified water is suitable for drinking and can not be used for washing and shower. For areas where the water source pollution is not serious and scale removal is not considered, it is suitable for installing water purifiers and matching with water softeners.

pure water

Pure water, also known as pure water, refers to the colorless, transparent and directly drinkable water, which is sealed in a container and does not contain any additives, with the water conforming to the sanitary specifications for drinking water as the raw water through appropriate processing methods.

advantage:

The purified water is produced by the pure water machine using the world's advanced ultra-thin membrane reverse osmosis water treatment technology. The filtration rate of the reverse osmosis membrane can reach more than 98.5%, and the filtration rate of bacteria, Escherichia coli, heavy metals and other substances can reach 100%. The purified water produced by the pure water machine in my home is more fresh and hygienic than the bucket water, which is suitable for raw drinking and cooking; Bathing with pure water can moisturize the skin; Due to the removal of calcium and magnesium, it is also softened water. Boiling the kettle or electric heater will not scale. It is especially suitable for the water required by small household appliances such as humidifier, steam iron and beauty instrument.

Insufficient:

Some people think that purified water is not suitable for long-term drinking. Although purified water removes bacteria, viruses, heavy metals and other pollutants in the water, which basically ensures the safety of drinking water, it also removes trace elements and minerals beneficial to human body. The value of purified water is weakly acidic. Long term drinking will affect the acid-base balance of electrolytes in human body, resulting in lack of nutrition and calcium deficiency, It should not be used as daily drinking water. In addition, although it is said to moisten the skin with pure water, because the water flow from the pure water machine is very small, it can only wash the face and can not be used for shower.

cost:

The price of pure water machine is generally more than 2000 yuan, and some are more than 5000 yuan. However, in the future, the cost of replacing the filter element is about 300 ~ 500 yuan every year. The filter element of the filter device of the pure water machine has a service life. The fiber filter element is generally 3-6 months, the activated carbon filter element is generally 6-12 months, and the shelf life of the reverse osmosis membrane is about one year, but this is not absolute. The service life of the filter element completely depends on the local water quality, water pressure and water consumption. In places with serious water pollution, the annual cost of changing the filter element is relatively higher.

Applicable:

Suitable for areas with serious water pollution, it is best to install pure water machines in high-rise buildings with water storage tanks. Although it is said that purified water is not suitable for long-term drinking, if the water source is seriously polluted, it is still important to protect life in the two options of poisoning and nutrition. If the nutrition is not enough, it can be supplemented by other methods.

Soft water

Soft water means that the hardness of water is less than 8 degrees and does not contain or contain less soluble calcium and magnesium compounds. Natural water, rain and snow water are soft water. Spring water, stream water and river water are temporary hard water, some groundwater is hard water, and distilled water is soft water processed manually.

advantage:

Softened water uses ion resin exchange technology to remove calcium and magnesium ions in the water through the softener, which can completely remove scale. Softened water has many advantages:

Soft water can beautify and beautify hair, make skin soft and smooth, promote skin metabolism, and make hair soft and shiny;

In terms of health care, it can reduce constipation and prevent the occurrence of stone diseases; Washing vegetables and cooking can shorten the time. The rice is soft and glossy, does not destroy the nutrition of vegetables, and maintains a fresh taste;

Soft water is used for washing, the tableware is cleaner, the washed clothes are soft and comfortable, prevent clothes from static electricity and save washing dose;

The effect of fish and flower culture is good;

Because the treated soft water will not block and produce scale, it has high heating efficiency and saves energy. It is especially suitable for water heater, Jacuzzi, independent heating stove and so on. The softener does not need to change the core, but only needs to regularly supplement the salt tank with large grain coarse salt.

Insufficient:

According to water nutrition experts, tap water with water hardness between 200 degrees and 300 degrees is qualified water. Calcium and magnesium ions are removed from the soft water produced by the water softener sold on the market, resulting in a high content of sodium ions. Long term drinking will have an adverse impact on the human body, especially on people with heart disease and patients with hypertension. In addition, the water softener can not remove the residual chlorine and organic matter in the water, so if the water hardness does not exceed the standard, it is best to use the soft water as domestic water instead of drinking water.

cost:

The smallest water softener that can make salt automatically or semi automatically also costs more than 3000 yuan, and the larger ones cost tens of thousands (usually for villas and independent houses), but there will be no other expenses except the cost of making salt in the future.

Applicable:

The soft water can save gas and make the heating hotter because the water alkali is removed, the water has good conductivity and no scale on the pipe wall. It is not suitable for gas wall mounted boilers and gas water heaters. Because the alkali content in the soft water is very low, it will not damage the gas wall mounted boilers and gas water heaters, which completely solves the problem of blocking the normal use of water facilities due to the generation of scale, It can prolong the service life of the equipment. Especially for families with household gas heating, it is best to install a water softener, which can not only improve the heating effect, but also save the heating cost.

In fact, there are so many kinds of water purification equipment, which means that customers have more choices and choose water purification equipment suitable for their own household. Then you can have an understanding of the water purification equipment and price according to the introduction of Xiaobian, and you can make your own judgment when purchasing the water purifier, so as not to be fooled by the seller.