As a salesman who has been selling water purifiers for nearly 5 years, I have to say that the water purifier industry is full of chaos;
If you want to buy a suitable water purifier for your own please make sure to read and think about this short article:
You may have never thought about it: water purifier manufacturers produce the same brand, different models, different prices of water purifiers are not a problem?
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, the low-end of our products have reached the standard, high-end but more perfect function (bullshit, in fact, he is telling you to use or not the same, the tap water is also up to standard before entering the home to use)
Therefore: when buying a water purifier price is not important, the brand is also unimportant, the only important thing is only the effect!
Imagine: even if you only spend 200 yuan to buy a water purifier, but you spent 200 yuan to buy a water purifier has no effect! That is a waste of 200 dollars. Do you think so?
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, etc.; in fact, there is only one role in 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 is too clean (there is no any beneficial minerals for the human body is not recommended for long-term adult drinking, babies, babies, the elderly prohibited; and can not filter microorganisms such as bacteria, viruses, etc.) filtering speed is slow by the way, Popularization: reverse osmosis applications - space water, purified water, water, water, water, water, water and water. Space water, pure water, distilled water and other preparations; alcohol manufacturing and degradation of water; medicine, electronics and other industries in the pre-preparation of water; chemical process concentration, separation, purification and water preparation; boiler make-up water desalination soft water; seawater, brackish water desalination; papermaking, electroplating, printing and dyeing, food and other industry water and wastewater treatment; deep treatment of municipal wastewater.
Second - focus on the cartridge can filter odor, improve taste (any one of the installation of activated carbon water purifier can do, however, the cartridge structure of different effects, life, price difference is huge)
Granular activated carbon cartridge: a short period of time to remove the odor, but a long time will be washed out of the waterway lose filtration effect; disadvantages: the water will be washed out of the water. Disadvantage: the service life is uncertain (users have to wait until they find that the cartridge has lost its purification ability to know)
High-density activated carbon: long service time; lumpy structure, will not form a watercourse; Disadvantage: the production of cumbersome, expensive (compared with the weight of the granular activated carbon on the high side of the 100-fold) due to the protection of the patents (the high cost of production)
Diatomaceous earth cartridges : first popularization: diatom mud (English: Diatom mud) is the main raw material is the formation of hundreds of millions of years of diatom minerals - diatomaceous earth, diatoms are a kind of algae living in the oceans and lakes. Oceans and lakes are the hometown of algae, where diatoms have many species, large number, known as the grassland in the ocean, they create 70% of the oxygen on which life on earth depends, is the real cradle of life on earth. Diatom mud to take life in millions of years ago, aquatic planktonic organisms - diatoms deposited natural substances, the main component of opal, rich in a variety of beneficial minerals, light and soft texture, electron microscope shows that the surface of its particles with countless tiny pores, pore rate of 90% or more, the specific surface area of up to 65 ㎡ / g. Diatom mud products have a unique "molecular", "molecular", "molecular", "molecular", "molecular", "molecular", "molecular", "molecular" and "molecular". Products with a unique "molecular sieve" structure, has a strong purification of air, eliminate odors so it can be regarded as a filtering impurities as well as filtering the double effect of odor, but can not be said to the business of filtering bacteria (the vast majority of bacteria, fungi volume less than 0.2 microns, can not be directly filtered)
Finally - concern about whether the water purifier can kill microorganisms, microorganisms in the virus, bacteria are potentially pathogenic 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; disadvantages: chemical residues
Chemical sterilization: the use of chemical cartridges to kill microorganisms; disadvantages: chemical residues, affecting 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 abnormalities, to enhance the difficulty in identifying the chemical residues)
Ultraviolet sterilization; sterilization rate of up to 99%; drawbacks: need to be energized (a potential leakage of security risks; of course, can be avoided through the potential risks of wireless power conduction technology) But the technology is protected by patents (high production costs)
A qualified water purifier to achieve: filtering impurities, retaining minerals beneficial to the human body, improve the taste of drinking water is enough
A high-quality water purifier must be: filtering impurities, retaining minerals beneficial to the human body, filtration of a variety of chemical pollutants, improve the taste of drinking water while killing bacteria, viruses
Another way of looking at installation is to look at the installation. p>2. Look at the installation: whether the installation of the water purifier is convenient directly affects your future use (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 a potential security risk of personnel in and out)
(eg: the low-end machine, you also need to change the pipeline to install an additional water purification outlet pipeline, the same need for a professional door-to-door installation)
The best -
(such as: the source of benefit water purifier using a diverter valve, just connect the diverter 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, 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 ranging from 150-800 yuan, a 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 + 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 cartridge replacement is often very complex (if: is a set of 5-level purification equipment, 3 months goods 6 months to replace a cartridge, 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 doorsteps of the family (14 times the door to the door service, perhaps will produce 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 mesh gradually accumulates dirt and impurities in the water, forming a filter impurity layer, due to the impurity layer accumulates on the outside of the fine filter mesh.
Backwashing its 1 - is to connect the tap water into the fine mesh filtering water outward (which 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 on 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 cartridge or not.
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 is everyone **** with the technology, at this time it is free of charge) Therefore, everyone on the market can be seen as a knockout technology is not too much!
7. Look at the sales: a good salesman will provide you with a detailed description of their own water purifier for sale, as well as comparison with other similar products, the performance advantages and disadvantages between various devices, rather than just advocating their own products.
Incidentally, this is also a common mistake I used to make (drinking alkaline water is more beneficial to health!!!).
Through a long period of study and accumulation, only to realize - in fact, drinking alkaline water and acidic water are the same
Because the normal human body fluids itself is weakly alkaline, the pH value on the 7.4 or so. In daily life, human body fluids have a strong neutralization buffer function, people themselves will be able to maintain the balance of acidity, so whether you intake of food is acidic or alkaline, the human body's pH is basically unchanged, there is no so-called use of acidic food caused by "acidic body". Therefore, when you drink water into the stomach, the environment of the stomach itself is acidic, with a pH of 2-3, and the gastric juice is a highly acidic buffer solution. No matter what kind of water you drink, after drinking to the stomach, the pH will change to acidic.
So, many salespeople called "only drink alkaline water is good, drink weakly acidic water is harmful" is no scientific basis, for the time being belongs to the misleading propaganda.
8. Look at the after-sales: a good brand has a perfect after-sales system (but this often need to really buy the product, the use of the problem in order to realize whether he is satisfied)
Here is not much to say, such as the need for water purifiers can be clicked on the answer to the bottom of the blue words Amway puzzlers first row of private letter to contact me.