1. How to change the filter element of the filter water purifier?
Water purifier is a kind of water treatment equipment that can be used for a long time. However, the filter element inside the water purifier needs to be replaced after a period of use. The filter element of water purifier belongs to a kind of consumables, and its service life is related to the quantity and quality of domestic water treatment. If the water quality is not good, the filter element will be easily blocked, so the frequency of replacing the filter element may be more frequent. In addition, if the water treatment capacity is large and the frequency of use is high, the time for replacing the filter element will be shortened accordingly. There are different types of water purifiers, including pre-filters, water purifiers, water softeners and direct drinking machines. It is worth noting that the filter element replacement methods of different water purifiers are different.
2. What are the purchase steps of the water purifier?
Step 1: Understand 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 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.
The second step of purchasing household water purifier: confirm whether the purpose of water use is direct drinking water or domestic water.
Generally speaking, domestic water can choose the whole house water purification method, such as the central water purifier with the whole house household filtration method. 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 has no requirement for pre-drainage, and there are many choices and combinations, which can be flexibly combined according to family needs to achieve better purification effect.
Step 3: Understand the installation location, size and method of household water purifier.
In general, it is best to buy a water purifier 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 know fairly well when buying in 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.
Step 4: Understand the brand and qualification of household water purifier.
The brands in the water purifier market are in full bloom. In the end, which brand is good, consumers can start with well-known brands. For example, Dalton Water Purifier and 3M Water Purifier are international brands, while Midea Water Purifier, Qinyuan Water Purifier and Angel Water Purifier are well-known brands in China. 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.
The fifth step of purchasing household water purifier: price comparison of water purifier.
At present, there is no uniform purchase standard for water purifiers on the market. Many consumers choose water purifiers by appearance, combining several filter elements and prices to compare prices. Or think that the higher the price of water purifier, the better the quality, and the more filter elements, the better the filtering effect. In fact, the water purifier is not a filter element, and 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 high price comparison.