As a salesman who has been selling water purifiers for nearly five years, I have to say that the water purifier industry is full of chaos;
If you want to buy a water purifier that suits your needs, please make sure to read and think about this short article:
You may have never thought about it before: Do water purifier manufacturers produce the same brand of water purifiers with different models and different price points?
Have you ever wondered if a low-priced model (the so-called 3-stage) of a water purifier produced by a factory can meet the water purification requirements?
And if so?
Then it produces high-priced models (the so-called 5 or 8) of water purifiers are necessary?
And much more expensive?
But what if the higher-priced models are the only ones that can actually purify water?
Then selling a low-priced model of water purifier is not a pitfall and fooling customers?
In order to adapt to the market of various consumer groups without regard to the quality of whether the standard is sold on the enterprise is trustworthy? It may say that in fact, our products have reached the standard of the low-end, high-end, but the function is more perfect only (bullshit, in fact, he is telling you to use or not the same, tap water is also up to standard before entering the family use)
Therefore: when buying a water purifier price is not important, the brand is also unimportant, the only important thing is only the effect!
How to choose a cost-effective water purifier? You can refer to the following important indicators to buy:
1. Look at the cartridge: the core of the main water purifier, its strengths and weaknesses have a direct impact on the water purifier purification indicators.
First of all - focus on the cartridge can filter impurities, so that the water looks clearer (it can be said that any water purifier can do, however, different filtration methods have very different effects)
Filter membrane: the market is also flooded with a variety of names of the filtration membrane, pp cotton and so on; in fact, the role of only one filtering The impurities above a certain specification.
Reverse osmosis: the most common on the market, 99% filtration rate has become its biggest selling point; the shortcomings are obvious that it is too clean (there is no beneficial minerals; and can not filter bacteria, viruses and other micro-organisms) filtration speed is slow
Secondly - attention to the cartridge can filter the odor, improve the (Any water purifier installed with activated carbon can do this, however, there is a huge difference in the structure of the filter cartridge in terms of effect, life span and price)
Granular activated carbon cartridge: it can remove odors in a short period of time, however, it will be washed out by water for a long time to lose the filtration effect; Disadvantage: the service life is not certain (the user has to wait to find out that the filter cartridge loses its purification ability before he can know it)
High-density activated carbon: long service life; lumpy structure, will not form a waterway; disadvantages: complicated production, expensive (100 times higher than the equivalent weight granular activated carbon) due to patent protection (high production costs)
Lastly - attention to the water purifier can kill micro-organisms, micro-organisms in the virus, bacteria are Potential pathogens must be removed (general products can not kill microorganisms; some products can kill microorganisms, but the technology determines the risk of purification)
Chemical sterilization: the use of chemical cartridges to kill microorganisms; shortcomings: chemical residues, affecting the taste and health (treatment: chemical cartridges installed after the improved taste of ionic cartridges or activated carbon cartridges; so that the consumer can not be directly detected from the taste of the abnormalities, enhance the identification of chemical residues) Abnormal, enhance the difficulty of identifying chemical residues)
Ultraviolet sterilization; sterilization rate of up to 99%; disadvantages: the need for electricity (potential leakage of security risks; of course, can be avoided through the electrical energy wireless conduction technology to avoid the potential risks) but the technology is protected by patents (production costs are high)
A qualified water purifier to achieve: filtering impurities, retaining the human body beneficial minerals, improve the taste of drinking water is sufficient. Improve the taste of drinking water is enough
A high-quality water purifier must: filter impurities, retain minerals beneficial to the human body, filtering a variety of chemical pollutants, improve the taste of drinking water at the same time kill bacteria, viruses
2. Look at the installation: the installation of the water purifier is easy to use directly affects your future use of the water purifier (easy to move?). Can you install it yourself? The simpler the installation, the more convenient the maintenance)
Avoid - change the pipeline is mostly under the table machine, when you need to replace the cartridge will be very inconvenient.
(eg: reverse osmosis need to install a booster valve must change the pipeline, so you need a professional door-to-door installation, it is very troublesome at the same time there is also a potential security risk of personnel in and out)
(eg: low-end machine, you also need to change the pipeline to install additional water purification out of the water pipeline, the same need for a professional door-to-door installation)
The best -
(such as: the source of benefit water purifier using a diversion valve, only need to connect the diversion valve in the faucet, you can do water purification, tap water diversion, easy to install)
3. Look at the consumption: wastewater - reverse osmosis technology in the process of water purification of water purification process produces wastewater, wastewater, heavy metal elements often Excessive heavy metal elements in the wastewater is often several times dozens of times, so with the discharged wastewater to wash clothes, clothes will become hard; used to mop the floor, tiles are damaged; even flush the toilet can not, will corrode the ceramics; much less likely to be used to wash the vegetables; so the generation of wastewater greatly really add the cost of use.
The proportion of wastewater directly affects the consumption of water purifiers, low-end water purifiers produce wastewater as high as the ratio of 1:6 (purify 1 ton of drinkable water needs to consume 6 tons of water; 1 ton of water tap water 3 yuan, then you need to drink 1 ton of drinkable water to spend 18 yuan)
Some technologically mature companies can be compressed to 1:3 wastewater consumption (that is, to drink 1 ton of drinkable water needs to spend 9 yuan)
Some technologically mature companies can compress wastewater consumption (that is, to drink 1 ton of drinkable water needs to spend 9 yuan).
For not using reverse osmosis such extreme technology water purifier in the process of water purification will not produce waste water, greatly saving the cost of purification.
Filter - water purification equipment in the process of purification will filter impurities and other harmful substances contaminated cartridge, so it needs to be replaced regularly.
Several common filtration technologies on the market water purifier: general 3 months to replace the impurities cartridge, pp cotton and activated carbon cartridge; 6 months to replace the reverse osmosis cartridge; price 150-800 yuan ranging from one year, if you change the cartridge on time, not counting the door-to-door service personnel's labor cost of about 100 yuan * 3 cartridges * 4 times + 800 yuan * 2 = 2800 yuan; in fact, the cost of the filter cartridge. (2800 yuan; in fact, the cost of the cartridge is much more than this cost, just a lot of people are replaced on time)
High-end water purifiers are used cartridge box (cartridges set synthesized together) a year only to replace the cost of 1500 or so.
4. Look at the convenience: in the process of using the water purifier is convenient, is also an important indicator of the merits of a water purifier.
Replacement - whether the cartridge replacement is convenient.
Some low-quality or low-end water purifier in order to make people feel convenient to save boasting that their water purifier does not need to replace the cartridge; there is a problem those filtered impurities where to go?
So they make up: magnetized?
Magnetization: the process of making the original non-magnetic material magnetic.
Not what some salespeople say: the sense of being melted away by magnetism!
Let ordinary water at a certain flow rate, along the direction perpendicular to the magnetic lines of force, through a certain strength of the magnetic field, ordinary water will become magnetized water. They boast that they can purify this and improve which? But the magnetized water only need to leave the magnetized equipment 30 seconds on the complete loss of magnetism, the effect can be imagined
Cleaning: not long ago, I also heard some salespeople say that a certain brand of water purifier do not have to replace the filter, as for every 7 days to clean once can be used for 20 years (every 7 days to clean once a month, 4 times a year, 48 times ah! 20 years need to be cleaned 960 times)
Can be a miracle (then), but also a miracle to maintain the water purification. adhere to is also a kind of miracle (then, each cleaning time consumed, can be worth how much money) (if you forget to wash your drinking water or clean and safe water) I really admire them so much can blow!
The water purification equipment on the market filter replacement is often very complex (if: is a set of 5-level purification equipment, 3 months goods 6 months to replace the filter, each time 5 cartridges; 3 cartridges * 4 quarters + 2 cartridges * 2 half a year = 14 times; an average of once a month) and for the average family need to be professionally installed on the doorstep (14 home visits, perhaps resulting in a 14 times) The service fee!)
High-end water purifiers use cartridges, you can easily replace the entire set of cartridges, convenient and trouble-free, save time.
Backwash: there is a ridiculous design on the market (backwash) is said to be 20 years without replacing the cartridge. That person I bought to see what is backwashing.
The water enters from the entrance, first through the coarse filter to filter out larger particles of impurities, and then reach the fine filter. In the filtration process, the fine filter gradually accumulated water dirt, impurities, the formation of filtering impurities layer, due to the impurity layer stacked on the outside of the fine filter.
Backwashing its 1 - is to connect the tap water into the fine mesh filtering water outward (this is how terrible ah.)! For impurities and bacteria that have been adsorbed, single water to flush, said that these harmful substances can be flushed out, but the internal reverse will be a large number of debris adhering to the inner wall of the water filter cartridge, so that when the water is filtered in the water will be mixed with these harmful substances into the water purification caused by the secondary pollution, not at all to play a role in purifying the water)
Backwashing its 2 - - As the impurity layer builds up in the fine filter, it is not possible to filter the water from the outside. -Since the impurity layer accumulates on the outside of the fine filter, a pressure difference is formed between the inside and outside of the fine filter. When the pressure difference of the filter reaches the preset value, it will start the automatic cleaning process, during which the purified water supply is cut off, the cleaning valve opens, the tap water does not pass through the filter element fine mesh but enters into the sewage pipe to form the drainage water flow, and through the pressure difference between the inside and outside of the filter mesh, the filter mesh is rinsed by the stored filtered water and the tap water. Cleverly avoids contamination of the inner wall of the filter cartridge. (There are two kinds: automatic and manual)
By discharging waste water to give people a kind of cartridge and clean illusion. Why is it an illusion? First of all, this method can only be used in the filter type of filter, for the activated carbon cartridge will be aggravated by the consumption (activated carbon cartridge: granular use of the period of up to 6 months, the block of 1 year, must be replaced) In fact, this constant backwash filter will be depleted life of the filter is not worth the loss.
There is also the fact that many bacteria and germs are still resistant to high temperatures and biocides, not to mention water.
So I recommend that you buy a replacement cartridge, but it's not easy to find businesses that offer this kind of service, and many of them aren't free. You can choose to replace the cartridge of the water purifier, so that when the replacement of their own can be convenient to replace, directly out of the cartridge, and then change a can, this is the most safe and healthy, and can change their own, do not have to look for others.
Tip - when to replace the cartridge is also one of the advantages of high-end products.
Low-end products will not prompt the life of the cartridge, relying on the user's own estimate or according to the instructions to the time to replace (so that even if the cartridge fails to meet the purification requirements or even has been as wastewater, the user does not know to drink as usual; how terrible! The heavy metals and pollutants that have accumulated over the months have been inadvertently consumed by you)
High-end products provide template indicators to remind users whether they need to replace the filter.
Convenient - the use of different technologies will also bring a different experience (eg: some products need to be energized to use, suffered a power outage shutdown, the incoming call must be restarted, but it has been a long time the customer can not find the book that is clear, and forget the key to restart? You say trouble! High-end products will not be such a situation, incoming calls can be used normally without restarting. (Is not very convenient)
5. Look at the reputation: through the above understanding, you should be very clear about the purchase of water purifier. Therefore, any water purifier that does not need to replace the filter is fooling you, do not believe that you ask him to take a look at the manual, which will definitely be labeled with the replacement time of the filter. For a company that is not trustworthy, the quality of the product will not be good!
6. Look at the technology: here the technology is that is a world-class patents (not on the market who can use, who are using the technology)
Patent technology protection period: since the date of application for invention patents are 20 years, utility model patents and designs are 10 years. During this period, others do not have the right to use, more than the period of protection can apply for authorization to the patent applicant or unit, pay to use (about 30 years later is everyone **** with the technology, at this time it is free) so the market everyone is using the technology can be seen as out of technology is not too much!
7. Look at sales: a good salesman will provide you with a detailed description of their own water purifiers for sale, as well as comparisons with other similar products, the performance advantages and disadvantages between the various devices, rather than advocating their own products.
8. Look at the after-sales: a good brand has a perfect after-sales system (however, this often need to really buy the product, the use of the problem in order to appreciate whether he is satisfied) here will not say more, in fact, as a water purifier such as the need for strict standards of the equipment, it is really need to carefully understand, choose.