As a salesperson 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 water purifier that suits you Regarding water purifiers, please be sure to read and think about this short article carefully:
You may have never thought about it: Are there any problems with water purifier manufacturers producing water purifiers of the same brand, different models, and different prices?
Have you ever thought about it: What if a low-priced model (so-called level 3) water purifier produced by a certain factory can meet the water purification requirements?
If so?
So is this necessary for the high-priced models (so-called level 5 or level 8) water purifiers it produces?
And it’s much more expensive?
But: What if high-priced models of water purifiers can truly meet water purification standards?
So wouldn’t selling low-priced models of water purifiers be a scam and deceive customers?
Can companies that sell products regardless of quality standards in order to adapt to various consumer groups in the market be trusted? It may say that in fact, the low-end products of ours have already met the standards, while the high-end products are just more complete in function (nonsense, in fact, he is telling you that it is the same whether you use it or not, and tap water is only entered into the home after it meets the standards)
Therefore: When purchasing a water purifier, price is not important, nor is the brand, the only important thing is the effect!
Imagine this: Even if you only spend 200 yuan to buy a water purifier, the water purifier you bought for 200 yuan has no effect! That's a waste of 200 yuan. Do you think so?
How to choose a cost-effective water purifier? You can refer to the following important indicators when purchasing:
1. Look at the filter element: the core component of the water purifier. Its quality directly affects the purification indicators of the water purifier.
First of all - pay attention to whether the filter element can filter impurities and make the water look clearer (it can be said that any water purifier can do this, but different filtration methods have completely different effects)
Filter membrane: The market is also full of filter membranes with various names, such as pp cotton, etc.; in fact, their only function is to filter impurities above a certain size.
Reverse osmosis: the most common on the market, with a filtration rate of 99% becoming its biggest selling point; the disadvantage is also obvious that it is too clean (it does not contain any minerals that are beneficial to the human body and is not recommended for long-term drinking by adults, infants, It is forbidden for babies and the elderly; and it cannot filter microorganisms such as bacteria and viruses). The filtration speed is slow. By the way, some popular science: reverse osmosis application scope - preparation of space water, purified water, distilled water, etc.; alcohol manufacturing and reduced water use; medicine, electronics, etc. Preparation of industrial water; concentration, separation, purification and water distribution preparation of chemical processes; boiler feed water desalination and soft water; desalination of sea water and brackish water; water and wastewater treatment for papermaking, electroplating, printing and dyeing, food and other industries; advanced treatment of urban sewage .
Secondly - pay attention to whether the filter element can filter odor and improve the taste (any water purifier equipped with activated carbon can do this, but the effect, lifespan and price of the filter element structure vary greatly)
Granular activated carbon filter element: It can remove odors in a short time, but over time it will be flushed out of the waterway and lose its filtration effect; Disadvantages: The service life is uncertain (the user will not know until the filter element loses its purification ability) )
High-density activated carbon: long service life; block structure, does not form water channels; disadvantages: complex production, expensive (100 times higher than equal weight granular activated carbon) due to patent protection (High production cost)
Diatom mud filter element: First popular science: Diatom mud (English: Diatom mud) The main raw material is diatom mineral formed over hundreds of millions of years - diatomaceous earth, diatom mud It is a kind of algae that lives in oceans and lakes. Oceans and lakes are the home of algae. There are many types and large numbers of diatoms here, and they are called the grasslands of the ocean. They create the oxygen that 70% of life on earth depends on for survival, and are the true cradle of life on earth.
Diatom mud is a natural substance deposited by diatoms, aquatic plankton that lived millions of years ago. The main component is opal, which is rich in a variety of beneficial minerals. It has a light and soft texture. An electron microscope shows the surface of its particles. It has countless tiny pores, a porosity of more than 90%, and a specific surface area of ??up to 65㎡/g. Diatom mud products have a unique "molecular sieve" structure, which has a strong ability to purify the air and eliminate odors. Therefore, it can be regarded as a dual function of filtering impurities and filtering odors, but it cannot filter bacteria (absolutely) as the merchants say. Most bacteria and fungi are less than 0.2 microns in size and cannot be filtered directly)
Finally - pay attention to whether the water purifier can kill microorganisms. Viruses and bacteria in microorganisms are potential pathogens and must be removed ( General products cannot kill microorganisms; some products can kill microorganisms, but technology determines the risk of purification)
Chemical sterilization: Use chemical filters to kill microorganisms; Disadvantages: Chemical residues, affecting taste and health (Treatment method: Install the chemical filter element afterward, improve the taste of the ion filter element or the activated carbon filter element; so that consumers cannot directly detect abnormalities from the taste and increase the difficulty of identifying chemical residues)
Ultraviolet sterilization; the sterilization rate is as high as 99%; Disadvantages: Requires electricity (potential leakage safety hazards; of course potential risks can be avoided through wireless power conduction technology) but the technology is protected by patents (production costs are high)
A qualified water purifier It is enough to: filter impurities, retain minerals that are beneficial to the human body, and improve the taste of drinking water
A high-quality water purifier must: filter impurities, retain minerals that are beneficial to the human body, and filter various Chemical pollutants, improve the taste of drinking water and kill bacteria and viruses
2. Check the installation: whether the installation of the water purifier is convenient will directly affect your future use (is it easy to move? Can you install it yourself? ? The simpler the installation, the easier it is to maintain)
Avoid - most of the pipe modifications are done under the table, which will be very inconvenient when the filter element needs to be replaced.
(For example: Reverse osmosis needs to install a booster valve and the pipeline must be modified, so it requires professionals to come and install it, which is very troublesome and also poses potential safety hazards for people to enter and exit)
(For example: Low-end machines also need to modify the pipes to install additional purified water pipes, which also require professional on-site installation)
Best - no need to modify the pipes, wall-mounted or tabletop water purification equipment, installation and replacement are very convenient .
(For example: Ezhiyuan water purifier uses a diverter valve. You only need to connect the diverter valve to the faucet to separate purified water and tap water. It is easy to install)
3. Look at the consumption: waste water - Water purifiers with reverse osmosis technology produce waste water during the water purification process. Heavy metal elements in the waste water often exceed the standard several times and dozens of times. Therefore, washing clothes with the discharged waste water will harden the clothes. ; Used for mopping the floor, it will damage the floor and floor tiles; it cannot even be used for flushing the toilet, which will corrode ceramics; it is even more impossible to use for washing vegetables; therefore, the generation of waste water greatly increases the cost of use.
The proportion of wastewater directly affects the consumption of water purifiers. The ratio of wastewater produced by low-end water purifiers is as high as 1:6 (purifying 1 ton of drinking water requires 6 tons of water; 1 ton Tap water costs 3 yuan, so drinking 1 ton of direct drinking water costs 18 yuan)
Some companies with mature technology can reduce wastewater consumption to 1:3 (that is, drinking 1 ton of direct drinking water costs 9 yuan) )
Water purifiers that do not use extreme technology such as reverse osmosis will not produce wastewater during the water purification process, greatly saving purification costs.
Filter element - During the purification process, water purification equipment will filter impurities and other harmful substances to contaminate the filter element, so it needs to be replaced regularly.
Common water purifiers with several levels of filtration technology on the market: generally replace the impurity filter element, pp cotton and activated carbon filter element every 3 months; replace the reverse osmosis filter element every 6 months; the price ranges from 150 to 800 yuan. If you replace the filter element on time in a year, not counting the labor costs of door-to-door service personnel, it will cost about 100 yuan * 3 filter elements * 4 times + 800 yuan * 2 times = 2,800 yuan; in fact, the cost of filter elements is much more than this cost, but many people are worried about replacing them on time. That’s all)
High-end water purifiers all use filter cartridges (the filter elements are integrated into sets) and only need to be replaced once a year at a cost of about 1,500.
4. Convenience: Whether it is convenient to use the water purifier is also an important indicator that determines the quality of a water purifier.
Replacement - whether the filter element is easy to replace.
Some low-quality or low-end water purifiers boast that their water purifiers do not require replacement of filter elements in order to make people feel more convenient and trouble-free; this raises a question: Where do the filtered impurities go?
So they made it up and said: Magnetized?
Magnetization: refers to the process of making a non-magnetic substance acquire magnetism.
Rather than what some salespeople said: consciousness melted away by magnetism!
If ordinary water passes through a magnetic field of a certain strength at a certain flow rate in a direction perpendicular to the magnetic field lines, the ordinary water will become magnetized water. They boast that they can purify this place, but how can it be improved? However, the magnetized water only needs to leave the magnetizing equipment for 30 seconds before it completely loses its magnetism. The effect is imaginable
Cleaning: Not long ago, I heard some sales staff say that a certain brand of water purifier does not need to replace the filter element. , as for cleaning it every 7 days, it can be used for 20 years (cleaning it every 7 days, 4 times a month, 48 times a year! It needs to be cleaned 960 times in 20 years)
As long as you persist It’s a miracle (so, how much time is spent on each cleaning, how much is it worth) (if you forget to clean it, will you still drink clean and reliable water?) I really admire them for being so good! !
The replacement of filter elements of water purification equipment on the market is often very complicated (if it is a set of 5-level purification equipment, the filter element needs to be replaced every 3 months or 6 months, with 5 filter elements each time; 3 filter elements *4 quarters + 2 filter elements * 2 half a year = 14 times; average once a month) and for ordinary families, professionals need to come to install (14 times of door-to-door service may incur 14 times of service fees!)< /p>
High-end water purifiers use filter cartridges, and you can easily replace the entire set of filters yourself, which is convenient, trouble-free, and saves time and worry.
Backflush: There is also a ridiculous design on the market (backwash) that is said to require no replacement of the filter element for 20 years. I bought that guy to find out what backwash is.
Water enters through the inlet, first passes through the coarse filter to filter out larger particles of impurities, and then reaches the fine filter. During the filtration process, the fine filter gradually accumulates dirt and impurities in the water, forming a filter impurity layer, because the impurity layer accumulates on the outside of the fine filter.
The first step of backwashing is to connect the tap water into the fine filter and filter the water outwards (how terrible this is! For the adsorbed impurities and bacteria, just use water to flush it, it is said that it is It can flush out these harmful substances, but the internal trans-type will adhere a large amount of debris to the inner wall of the water purifier filter element. In this way, when the water is filtered in, these harmful substances will be mixed into the purified water to cause secondary pollution, which does not work at all. The role of water purification)
Backwashing 2 - Since the impurity layer accumulates on the outside of the fine filter, a pressure difference is formed between the inner and outer sides of the fine filter.
When the pressure difference of the filter reaches the preset value, the automatic cleaning process will start. During this period, the clean water supply is cut off, the cleaning valve is opened, and the tap water does not pass through the fine filter screen of the filter element but enters the sewage pipe to form a drainage flow, which passes through the filter screen and If there is a pressure difference outside the filter, use stored filtered water and tap water to flush the filter. Cleverly avoids contamination of the inner wall of the filter element. There are two types: automatic and manual)
By draining waste water, it gives the illusion that the filter element is clean. Why do you say it's an illusion? First of all, this method can only be used for filter elements. For activated carbon filters, it will increase consumption (activated carbon filter elements: granular ones can be used for up to 6 months, and lumpy ones can only be used for 1 year and must be replaced). In fact, this continuous feedback Washing the filter will also reduce the life of the filter.
Also, many bacteria and germs are resistant to high temperatures and fungicides, not to mention being washed with water.
Therefore, I suggest that you buy products that replace filter elements. However, it is difficult to find merchants with such door-to-door service, and many of them are not free. You can choose a water purifier that replaces the filter cartridge, so that you can easily replace it when you replace it. Just take out the filter cartridge and replace it. This is the safest and healthiest, and you can replace it yourself without having to look for it. other people.
Tip – When to replace the filter element is also one of the advantages of high-end products.
Low-end products will not indicate the service life of the filter element. It is entirely up to the user to estimate it or replace it according to the instructions (in this way, even if the filter element fails, fails to meet the purification requirements or even becomes like waste water, the user You don’t know how to drink it as usual; how terrible it is! You have accidentally drank the heavy metals and pollutants accumulated for several months)
High-end products provide template indicators to remind users whether the filter element needs to be replaced.
Convenience - Different technologies will also bring different usage experiences when using them (for example: some products need to be powered on to use, encounter a power outage and shut down, and must be restarted when a call comes, but it has been a long time and customers cannot find them. After reading the instructions, you forgot the button to restart? Isn’t it troublesome! This will not happen with high-end products, and it can be used normally without restarting. Isn’t it very convenient?
5 .Look at reputation: Through the above understanding, you should have a very clear understanding of the purchase of water purifiers. Therefore, any water purifier that says there is no need to replace the filter element is deceiving you. If you don’t believe it, ask him to read the manual. The replacement time of the filter element will definitely be marked on it. For a company that is not trustworthy, the product quality will not be good! !
6. Look at the technology: The technology here refers to the world-class patent (it is not a technology that can be used by everyone on the market and is used by everyone)
The protection period of the patented technology : From the date of application, invention patents are valid for 20 years, utility model patents and design patents are valid for 10 years. During this period, others have no right to use it. After the protection period, you can apply for authorization from the patent applicant or unit and pay to use it (it will be the most commonly used technology after about 30 years, and it will be free at this time). Therefore, it is used by everyone on the market. It is not an exaggeration to say that technology can be regarded as obsolete technology! !
7. Look at the sales: A good salesperson will give you a detailed introduction to the water purifier he sells, as well as a comparison with other similar products, and the performance advantages and disadvantages of various devices, rather than blindly Promote your products.
By the way, this is also a mistake I often made in the past (drinking alkaline water is more beneficial to health!!)
After a long period of study and accumulation, I discovered that-in fact Drinking alkaline water and acidic water are the same
Because normal human body fluids are weakly alkaline, with a pH value of around 7.4. In daily life, human body fluids have a strong neutralizing and buffering function, and humans themselves can maintain a pH balance. Therefore, no matter whether the food you consume is acidic or alkaline, the pH value of the human body remains basically unchanged. There is no such thing as "acidic constitution" caused by eating acidic foods. Therefore, when water is drunk into the stomach, the stomach environment itself is acidic, with a pH of 2-3, and gastric juice is a highly acidic buffer solution.
No matter what kind of water you drink, the pH will change to acidic when it reaches your stomach.
Therefore, many sales staff’s statement that “only drinking alkaline water is good, drinking weakly acidic water is harmful” has no scientific basis and is still misleading propaganda for the time being. < /p>
I won’t go into details here. If you need a water purifier, you can click on the blue words Amway Puzzle Solvers in the first row below the answer to contact me via private message.