First, the purchase steps of household water purifier
1, know the local water quality. The principle of water purification is to filter substances harmful to human body and purify water quality through terminal water treatment. According to the different water quality in different places, the functional design of water purifier is also different. China has a vast territory and the water quality is quite different. Generally speaking, the water quality in the north is hard and there are many impurities, so you should choose a water purifier or a water softener with ion exchange resin filter core. The water quality in the south is soft, and heavy metals and secondary pollution are serious. Families with high water quality requirements can choose pure water machine, and if the local water quality is good, they can choose ultrafiltration machine.
2. Confirm whether the purpose of water use is direct drinking water or domestic water. Generally speaking, the whole house water purification method can be selected for domestic water use, such as the whole house household filtration water purifier. The whole house water purification system needs to be drained in advance during the decoration period, and not only the water output but also the water output effect should be considered. Direct drinking water does not require pre-drainage, and there are many choices and combinations, such as pre-water purifier+five-stage water purifier+faucet water purifier, or pre-water purifier +RO reverse osmosis water purifier, which can be flexibly combined according to family needs to achieve purification effect.
3. Understand the installation location, size and method of home water purifier. Under normal circumstances, the purchase of water purifiers is carried out before renovation. Consumers should measure the location and size of the water purifier to be installed at home in advance, or reserve the installation space and installation method before decoration, so that they can buy with confidence when entering the store and avoid the twists and turns of improper purchase. If it has been decorated, you can ask the installer to come home to help check the layout and provide reference opinions on the installation location and method of the water purifier. Generally, regular big brands have on-site installation services.
4. Understand the brand and qualification of the water purifier. The brands in the water purifier market are in full bloom. Which brand is good, consumers can start with big brands. For example, Midea Water Purifier and Angel Water Purifier are well-known brands of domestic water purifiers. If it is an unfamiliar brand, you may wish to check the test report and certificate of the water purifier to see whether the brand has a hygiene license endorsed by the state department, whether it has passed the appraisal of the state technical supervision department, and whether it meets the national drinking water quality standards. This is a necessary condition to ensure the purchase of regular water purifiers.
5. Price comparison of water purifiers. At present, there is no uniform purchase standard for water purifiers on the market. Many consumers choose water purifiers according to their appearance, and compare prices by combining several filter elements and prices. Or think that the higher the price of water purifier, the better the quality. In fact, the water purifier water purifier is not a filter element. The higher the price, the better. Its price comparison is determined by the adaptability of the water purifier to the local water quality and the technical quality of the filter material of the water purifier, and the sum of the two prices is the water purifier product with price comparison.
Second, the water purifier is cleaner this way.
1, ozone sterilization method
Some brands of pure water and distilled water outlets are equipped with ozone sterilizers to provide on-site cleaning services. According to reports, this disinfection method uses the sterilization effect of ozone to achieve the purpose of cleaning the water purifier. When cleaning, after emptying the remaining water in the machine, the interface of the sterilizer is docked with the water inlet of the water purifier, and ozone is injected into the inner container of the water purifier. Fumigation is about 20mm, and a small amount of water is released after being bottled. Because the half-life of ozone at room temperature is 20-50 mm, it can be completely decomposed in a few hours and oxidized into harmless oxygen, water and carbon dioxide. After ozone sterilization and cleaning, you can drink safe water in an hour or two. However, it should be noted that this cleaning method cannot remove impurities such as scale in the water purifier.
2. Filter pressing method
At present, a professional household water purifier cleaner with filter pressing mode has appeared on the market. When cleaning, one end of the cleaning machine is connected to the water inlet of the water purifier, and the other end is connected to the water outlet at the lower part of the water purifier to form a closed loop, and a special disinfection cleaning agent is used at the same time. This method can completely use the circulating pressure of the cleaning machine itself to achieve the purpose of cleaning, and then completely discharge the scale and impurities through mechanical pressure.
3. Cleaning methods of tablets and disinfectants
The common method of cleaning the inner container of household water purifier is to use decontamination effervescent tablets or special disinfectants. It is understood that decontamination effervescent tablets are chlorine-containing tablets, which can effectively kill bacteria such as Escherichia coli, Staphylococcus aureus and Candida albicans after being decomposed in water. People can clean the household water purifier at home as long as they buy special tablets and disinfectants. The specific cleaning process is as follows: first, open the drain pipe behind the water purifier, turn on all the switches, and discharge all the remaining water; Dissolve 1 decontamination effervescent tablets in about 2 liters of clean water to make disinfectant; Part of the water purifier can be scrubbed with disinfectant, and the rest can be poured into the bladder; After passing through 15-20 mm, turn on the switch and drain pipe of the water purifier, drain the disinfectant several times, and use 7-8 liters of clean water.
You know, choosing a good water purifier can not only improve the effect of water purification, but also make us feel at ease when using it, and it is not harmful to our health. So when you choose a water purifier, you must not be cheap. Buying inferior products will do some harm to our health.