What kind of water purifiers can not buy?

Water purifier purchase to avoid pit guide

I. Precautions

1. Determine the demand and water quality fit: according to the number of family members, water habits and local water quality to choose the right water purifier. Such as the northern hard water area, high calcium and magnesium ion content, easy to scale, give priority to RO reverse osmosis models; southern soft water area, residual chlorine, heavy metal exceeds the high rate, can consider ultrafiltration + activated carbon combination; special water quality areas, such as coastal high salt, mining areas, the need for RO machine + pre-filter double protection; rental housing or old neighborhoods, you can choose portable installation-free water purification machine, and with TDS monitoring. You can apply to the local water authority for a “water quality test report”, or use the TDS pen to self-test (<50 can be drunk directly, >200 need RO machine), you can also observe the amount of limescale after boiling water, if the bottom of the pot accumulates more than 1mm in 1 week, you must choose the RO model.

2. Focus on the core parameters:

2.1. flux: flux represents 24 hours of water purification, unit G (gallons), 1G ≈ 3.785 liters. The larger the flux, the faster the water speed. Generally more than 400G can basically meet the use, it is recommended to directly on the large flux water purifier, such as 600G and above, to receive a cup of water faster. But the greater the flux is not the better, large flux models later RO membrane maintenance costs are higher, the average family to choose 600 - 1000G flux is more appropriate.

2.2. Total water purification: the total amount of pure water that can be filtered by the water purifier, the higher the value, the better the quality of the cartridge, the more durable. The higher the value, the better and more durable the cartridge is. When this value is reached, the cartridge usually needs to be replaced.

2.3. Filter: Filter is the core of the water purifier, common filtration process of reverse osmosis and ultrafiltration two. Reverse osmosis water purifier RO reverse osmosis membrane can filter heavy metals, bacteria and other plasma impurities, filtered water can be directly drinkable; ultrafiltration water purifier can play a role in water purification, but the purified water is not recommended for direct drinking, more suitable for washing dishes, washing, etc.. Buy reverse osmosis water purifier to focus on the life of the cartridge, try to choose the long life of the cartridge products to reduce the cost of late use. In addition, different filter functions are different, PP cotton is used to intercept large particles of impurities, activated carbon adsorption of residual chlorine, odor, etc., RO membrane filtration of bacteria, viruses, heavy metals, etc., after the activated carbon to improve taste, should understand the function of each cartridge, material, life, and the replacement cost and cycle.

2.4 Wastewater ratio: the ratio of water purification and wastewater output, the higher the water saving. For example, the waste water ratio of 2:1, that is, the production of 2 cups of pure water will produce 1 cup of waste water. National water efficiency water purification water production rate of 65% or more, corresponding to the wastewater ratio of about 2: 1. Do not over-pursuit of ultra-low wastewater ratio, because it may damage the RO membrane, reducing its service life, generally consider the wastewater ratio of 2: 1 or so.

2.5. Volume: Choose the right volume of water purifier according to the installation space, especially for families with limited kitchen space, avoid purchasing products with too large a volume, which affects the use of space under the kitchen.

2.6. Automatic flushing function: automatic flushing can reduce the RO membrane around the concentrated water impurities on the impact of RO, to extend the life of the RO membrane, the lazy friendly, you can prioritize the choice of products with this feature.

2.7 Safety protection function: leakage of faucet or not closed tightly may cause damage, there are continuous water production protection and leakage protection function of the water purifier can be used as a plus point.

Second, easy to step on the pit

1 Filter related traps:

1.1 Misleading number of cartridges: not the number of cartridges, the better, the filtration effect lies in the core cartridge, such as RO membrane. Some merchants mislead consumers by increasing the number of activated carbon or PP cotton cartridge, too many cartridges are not only high prices, the cost of replacing supplies later is also higher.

1.2 Exaggerated life of the cartridge: businesses publicize the long-lasting cartridge, but the actual use of water quality, water frequency and other impacts. In heavily polluted areas, the life of the cartridge may be much shorter than the publicity. Part of the business for the sale of products, false propaganda cartridge 3 - 5 years without replacement, the actual life of the cartridge is generally about 12 months, according to the actual water quality 6 months to 1 year replacement, otherwise it will lead to secondary pollution.

1.3 cartridge profiteering set: some brands use special cartridges to bundle consumers, cartridges sold at a price of more than a thousand dollars, the average annual cost is high. Such as a brand RO membrane cartridge price is high, the consumer late use costs.

2. False parameter publicity:

2.1 Wastewater than false: business claims high wastewater ratio, such as 4:1 or 5:1, but may be labeled in the small print “use ECO mode to achieve”, the actual daily mode of wastewater ratio is far less than the mode of water production is slow, not practical.

2.2 RO membrane false labeling: some businesses false labeling RO membrane performance, consumers should recognize Dow, Toray, GE and other first-tier brands, and asked to show NSF certification to ensure product quality.

3. Functional exaggeration and misleading:

3.1 beauty and health scam: business publicity water purifier filtered water can be beauty, health, cure, etc., these effects have no scientific basis, the main function of the water purifier is to filter impurities in the water, purify water.

3.2 Supplemental trace elements misleading: publicize the water purifier can be supplemented with trace elements unscientific and unsafe, the human body on the demand for trace elements vary from person to person, from place to place, simply add minerals in the water purifier may not be conducive to good health.

3.3 chemical pollution filtration exaggerated: ordinary water purifier is difficult to filter all chemical pollution, acid, alkali, inorganic salts, heavy metals, organic pollutants and other chemical pollution, need to be through reverse osmosis (RO membrane) water purifier, and in the pre-processing combined with ultrafiltration membrane, activated carbon and other filtration, businesses exaggerate the ability of the ordinary water purifier filtration of chemical pollution, misleading consumers.

4. Free and low price trap:

4.1 Free machine trap: to “0 yuan to buy a machine” and other ways to attract consumers, in fact, tied to the sky-high price of the cartridge, the average annual cost of the cartridge is higher than the machine selling price, such as a brand “free machine”, but the average annual cost of the cartridge is high, the consumer long-term use of the cost of a large increase.

4.2 low-priced low-quality products: some low-priced water purifiers may be “three no” products, quality is not guaranteed, can not achieve the advertised filtration effect, and may even be due to the poor quality of the material on the health hazards. Some merchants to sell at a loss, low-priced treatment as a reason to promote shoddy products, its production standards are low, low-cost.

5. Installation and after-sale hazards:

5.1 Installation service loopholes: there may be a water pipe connected to the reverse of the user accidentally drinking concentrated wastewater, the installation should require on-site TDS testing, retain the installation video to ensure that the installation is correct.

5.2 After-sales service is not guaranteed: some merchants have poor after-sales service, product problems, maintenance is not timely or can not provide effective after-sales service, need to understand the business reputation before buying.

Third, the merchant set

1 free trial and installation set: free trial, free installation as a gimmick to attract consumers, the end of the trial period to force consumers to buy, or charge a high trial fee, filter costs, installation costs. Such as some merchants claimed free installation of water purifier, but after the installation of high-priced cartridge fees, and after-sales service is not guaranteed, consumers want to return the difficult.

2. Exaggerated publicity set: exaggerated functions and effects of water purifiers, such as publicity can cure diseases, beauty, remove all harmful substances, etc., to mislead consumers to buy. Part of the business to take advantage of consumer health concerns, false propaganda water purifier has a variety of magical effects, there is actually no scientific basis.

3. Price sets:

3.1 Price increase and then discount: In promotional activities, the first to increase the daily sales price of water purifiers, and then discount, so that consumers mistakenly think that they enjoy the benefits, the actual price may not be cost-effective.

3.2 Low price to attract high-priced consumables: Sell water purifiers at low prices to attract consumers to buy, but its cartridges and other consumables are expensive, and the cost of late use is high, and high profits are obtained through the sale of consumables.

4. Counterfeit sets:

4.1 Impersonating international brands: Some water purifier manufacturers falsely advertise their brand strength, posing as the top ten international brands, centuries-old brands, etc. Even brands that have just been registered claim to be international brands, taking advantage of consumers' trust in foreign brands to mislead them into buying.

4.2 Counterfeit well-known brands: some cottage products in the appearance of imitation of well-known brands, almost fake, but the quality and performance is far inferior to the genuine, to attract consumers at low prices, consumers are easily deceived.

5. Inducement of consumption sets:

5.1 The use of water quality testing misleading: business by exaggerating the severity of water pollution, on-site water quality testing and exaggerated effects, such as the use of electrolysis experiments to make tap water discolored, cloudy, falsely claimed to contain “pesticides,” ‘viruses’ and “heavy metals”. “Heavy metals” and other harmful substances, inducing consumers to buy water purifiers at high prices.

5.2 for the elderly group induced: for the elderly consumer groups, “home appliances to the countryside,” “government projects” under the guise of using the elderly do not want to refuse, for fear of getting sick mentality, sales promotion. Such as publicizing the filtered water can be health, improve chronic diseases, high-priced water purifiers.

Fourth, avoid the pit recommendations

1. Do your homework, understand the product: before buying through the network, professional reviews, user reviews and other channels, to understand the type of water purifier, principle, parameters, brands and other knowledge, clear their needs and budget, do not blindly follow the wind to buy. Comparison of different brands and models of products, to understand their advantages and disadvantages and applicable scenes.

2. Carefully screen the promotional information: Stay alert to the promotional content of the business, do not easily believe the over-exaggerated efficacy and commitment. Check the product specifications and parameters, and check with the publicity content, for vague or unreasonable publicity, timely to the business for verification. Involving health effects and other publicity, if there is no scientific evidence, do not believe.

3. Field inspection and consultation: conditions can be to the physical store field inspection of the product, observe the product workmanship, materials, consulting sales staff product details, such as cartridge replacement, maintenance costs, after-sales service and so on. You can also consult the users who have purchased and used, to understand the actual use of experience and problems.

4. Concerned about product details and qualifications: check whether the product has a complete logo, including product name, trademark, specifications, water purification flow rate, the total amount of water purification, health license approval number, the implementation of standard number and other information. Verify whether the health license approval information is consistent with the product, which can be queried on the website of the National Health and Health Commission. At the same time, pay attention to the certification of the product, such as NSF certification, WQA certification and other authoritative certifications to ensure product quality.

5. Sign a contract and retain evidence: sign a detailed contract with the merchant when purchasing, specifying the product model, price, after-sales service, cartridge replacement cycle and price. Keep the shopping vouchers, invoices, promotional pages, test reports, chat records and other evidence, in order to maintain rights when problems arise.

V. Conclusion

When purchasing water purifiers, consumers need to fully understand the relevant knowledge, starting from determining their own needs, focusing on the core parameters, assessing the maintenance costs, choosing reliable brands and channels and understanding the installation and after-sales service, and other aspects of the careful choice. In particular, we should be alert to a variety of business routines and common traps, such as cartridge-related traps, false parameter publicity, exaggerated and misleading features, free and low-priced traps, as well as installation and after-sales pitfalls. By doing your homework, carefully screening the promotional information, field inspection and consultation, pay attention to the details of the product qualification and retain evidence, avoid the pit in the purchase process, choose the quality of the water purifier for your family, to protect the health of the family's drinking water.