preface:

For millet water purifier, the second generation not only changed the installation position of the water purifier from above the kitchen to below the kitchen, but also made more rational use of the kitchen and bathroom space. The biggest change is undoubtedly the increase of export design and water output. However, the increase of 700 yuan in price is also a trend that makes consumers hesitant.

Another aspect that consumers worry about is "Is the tap water in their homes not clean and sanitary? Why do they need to spend extra money to buy water purifiers? Can millet water purifiers really filter 100% of all impurities"... In terms of the current domestic development momentum, many first tier and second tier cities are in a leap forward development, which also leads to the necessity of urban expansion, And can the new and old tap water supply systems hidden here bear the burden? Is there any transmission pollution caused by pipeline leakage?

Don't tell the author that it is impossible. In recent years, there have been a lot of news about the sudden collapse of the ground caused by the leakage of the water supply system.

On the basis of the first generation of Xiaomi water purifier, will the second generation of Xiaomi water purifier reassure consumers about the 700 yuan in terms of water outlet design, water output, etc? What is more important is whether the improvement of water quality can play a role in the end.

The host of the water purifier "has the same appearance and filter element as the previous generation, but further improves the pure water rate"

In appearance, the under kitchen type and above kitchen type of millet water purifier are both 410 high x 205 wide x 260 deep mm in three circumference ratio, and the area similar to that of an A4 sheet of paper can save a good space in a compact kitchen and bathroom space, while the under table design is used to further hide it. As a user, it is necessary to reserve a socket in the cabinet in advance.

Relatively speaking, the off stage type is more suitable for new consumers, and does not need to carry out too much additional line modification and water outlet point treatment. It is better to simply preset according to the requirements of the machine.

The appearance of the millet water purifier under the kitchen is still the same as that above the kitchen. The surface is treated by sanding, and there is no groove on both sides, which makes it inconvenient to lift and move; As far as the overall appearance is concerned, although it is designed under the kitchen, the filter element of many brands on the market is not exposed, and the overall dust-proof effect is good.

An inconspicuous small work indicator light is designed in the front, mainly to provide "network status prompt, blue is always on when successfully connecting to WiFi, blue is flashing when connecting, and orange when there is no network"; As far as the front panel is concerned, it is originally under the kitchen, and does not need too much display effect, but the author still thinks whether it is possible to implant the hidden number of millet scale to display TDS indicators in real time?

On the other hand, the 400G logo under the MI logo has not changed at all. If you just look at the appearance, you will not find the difference between the under kitchen style and the under kitchen style.

The top panel of the Xiaomi water purifier is white while the bottom panel of the Xiaomi water purifier is sky blue. This is the only difference between the two from the appearance of the host. The top of the back body is concave design, so the opening of the top panel will not be complicated.

The top panel was scolded as the product use precautions and WiFi connection instructions.

In addition to the complexity of installation when buying a drinking water machine, ordinary consumers are undoubtedly most concerned about the material, life and price of the filter element. The design of four filter elements is still followed in the under kitchen type of millet water purifier, which are made of "PP cotton, activated carbon RO reverse osmosis, four layers of activated carbon ", using RO reverse osmosis membrane technology, through four layers of filtration, can effectively remove sediment, scale, bacteria, heavy metals, water quality meets the national standard for packaged drinking water, TDS water quality test pen shows below 50PPM, can be directly drunk.

In order to facilitate user identification, the top handle of each filter element is also engraved with a unique logo. The service life and price of the filter element are 59 yuan for 3-6 months for PPcotton, 69 yuan for 6-12 months for activated carbon, 499 yuan for 18-24 months for RO reverse osmosis, and 69 yuan for 6-12 months for activated carbon. The whole filter element must be replaced once every 6-24 months.

From the bottom of the filter element, different filter holes can be seen. Each hole is equipped with a sealing rubber ring. Users do not need to worry about the aging and water leakage of the sealing rubber ring when using it.

Inside the filter element hole of the water purifier, the 1:1 pure water waste water rate that many users questioned in the previous generation has been further treated. As far as the visual effect is concerned, the kitchen type pure water waste water rate of the millet water purifier is about 1.8:1, and the water is discharged when the water throat is opened. Although this is somewhat different from the official 2:1, However, it is undeniable that the overall water volume has increased significantly.

The installation of the filter element should not be complicated, and it does not need to be specially installed by additional personnel. The filter element should be installed from 45 ° to 90 ° according to the number of seats. Therefore, when replacing the filter element, it is OK to directly purchase and install it at home. It is much simpler than that many water purifiers in the market require special personnel to install the filter element every time they replace it.

The only button under the kitchen of the millet water purifier is hidden inside the machine as the previous generation, which is mainly used to replace the filter element, reset, and detect faults. If the wifi network is normally connected, the blue working light will be on. If the orange working light of the filter element is on, please pay attention to replacing the filter element in time.

However, I personally feel that this will not play a big role, because it can be connected to Xiaomi's "Xiaomi Smart Home" app, and you can check the product status through your mobile phone in real time. This function can only be regarded as temporary or nonexistent. The only useful function is the reset function.

"Water outlet mode is the biggest change, the transition from transformation to independence"

It is believed that there are many users who have used millet water purifier in the kitchen. The kitchen outlet adopts a special hose design. Without changing the original pipeline, the special hose is installed on the original tap water hose. This design looks good, but because the special hose needs to supply water and water, its tail is very big.

The water inlet and outlet design under the kitchen of the millet water purifier is finally striking. The water inlet pipe, pure water pipe and concentrated water pipe are designed separately. At the same time, the main body of the water purifier is hidden under the cabinet, effectively solving the "small tail" problem.

The three water pipes are different in size and color. The largest is the water inlet pipe, the gray is the concentrated water pipe, and the fine white water pipe is pure water. If the user installs it himself, he must carefully distinguish it; The under kitchen type of millet water purifier currently provides free installation services. If additional pipes and holes are needed, they will be charged; However, the author did not receive an appointment installation service call until 10 days after receiving the test article. This timeliness still needs to be further improved. However, the overall installation difficulty is not complicated, and it is basically self determined in about 20 minutes.

It is also mentioned above that the under kitchen type of millet water purifier uses a dedicated pure water hose design, which is also the reason why its price is more expensive than the over kitchen type. Normally, the price of buying a high-quality stainless steel hose is between 150-300, while the official free installation service makes the author feel that it is covered in the difference of 700 yuan.

The dedicated pure water hose under the kitchen of millet water purifier is a single outlet independent design. It is made of high-quality 304 stainless steel, which has a strong smooth effect, anti fouling and rust resistance. Compared with the 300 or so hose on the market, it is more reliable to look at the service life from the perspective of material.

The rough gasket design was not adopted. Instead, a ring of anti-skid rubber sunken inside the base was used, and a fixed ring buckle was used to ensure waterproof effect.

The standard tee joint is mainly used for opening/closing water and dividing the raw water pipe into two parts. It does not need to add a special water inlet. The installation of the water inlet tee under the millet water purifier can be completed by connecting it to the raw cold water pipe.

The special water pipe under the kitchen of millet water purifier has one more ring buckle than the ordinary household water pipe. The fixed ring buckle with holes on both sides not only plays the role of sealing and waterproofing, but also is the connection hole of the line body. It can be said that one ring is multi-purpose, and the bottom is a fixed pad.

As the most critical configuration at the water inlet, the quality of the tee is undoubtedly very important. From a microscopic perspective, we can see the fine side of the tee in terms of thickness, burr and tile opening.

Three section fixing ring, each section has its own special function, and under this condition, the pure water interface also uses 304 stainless steel material with PE water pipe, so the installation is not too complicated.

The joint with waterproof effect is made of pure copper needle inside, which fully guarantees the transmission stability and safety.

"Actual installation effect: under the kitchen PK over the kitchen"

As the biggest change, millet water purifier under the kitchen needs to have holes in the wash basin. If it does not have holes, it will have to spend money to ask the master to help make the holes. In addition, there will be no extra costs (except for special takeover). The biggest feeling under the comparison between the two is that under the kitchen hose is higher in appearance and will not damage the household appearance.

The under kitchen type of millet water purifier uses a circular two-color LED light for status prompt. Orange is in the status of washing and filtering, and blue is in the status of pure water. However, the author has repeatedly experienced and tested that it is better not to receive water at the moment of turning blue. At this time, the TDS value is about 8-9, while the TDS value 10 seconds after the water is discharged is 5 or even lower.

The installation effect of three-way pipe is perfect for the first time with the help of non professional installers like the author, who did not see any water leakage. It can be seen that the installation of three-way pipe is not difficult. If you choose one of all accessories installed under the kitchen of millet water purifier, it is the three-way pipe.

It is not a problem to combine and tighten the hose power interface and the interface extended from the body.

For the concentrated water pipe, the author has something to say: "It is not difficult to directly insert into the drainage pipe, but it is easy to grow moss. Can you add a one-way valve? Moreover, all pipelines are of integrated design, which is a big problem in case of replacement", Another point is that "some people refit the concentrated water pipe for saving. The starting point is good, but the length of the water pipe cannot be transferred in a large range, so they need to purchase additional adapter pipes".

The damping of the water hose will neither be saggy nor laborious, which belongs to the effect of positioning after hand stopping.

Compared with the kitchen style, the improvement of water yield is the most satisfactory thing for this product. No matter how extravagant it is, it can't afford such extravagance and waste.

"Appearance and installation are not the most important, but the purpose is to see the change of water quality"

The beautiful appearance and simple installation are all floating clouds. The purpose of consumers to buy water purifiers is to purify water sources, reduce water pollution, and obtain pure water that is beneficial to the body; The above kitchen style of millet water purifier has been recognized by many consumers. Can the under kitchen style of millet water purifier under this cushion continue to follow the performance reputation of above kitchen style of millet water purifier in water quality testing?

Water quality test I: TDS test

TDS (TOTAL DISSOLVED SOLIDS) in Chinese means the total solid content dissolved in water. TDS meter is a meter designed for this purpose, which can see the ppm value of inorganic or organic substances in water. However, this is only an initial inspection, and cannot provide completely correct information and what the contents are. If correct contents are required, the inspection shall prevail. Detect the total dissolved solids (TDS) in water, that is, detect the total amount of various organic or inorganic substances dissolved in water, in ppm or mg/l (mg/l)

The author sampled distilled water, concentrated waste water, tap water and pure water from millet water purifier's kitchen respectively, and tested them with millet's own TDS tester. The results were "0 ppm distilled water, 257 ppm concentrated waste water, 105 ppm tap water and 5 ppm pure water". It can be seen that the pure water filtered by millet water purifier's kitchen is very close to distilled water, The original 105ppm tap water will also be filtered down to 5ppm.

Water quality test II: acid-base test

At present, the acidity and alkalinity of water quality can be divided into solution test and test paper. In terms of accuracy, the solution test is the most accurate. Methyl red indicator solution (yellow) is used for the acidity test of water quality (the more acidic the water is, the more red it will be), and bromothymol blue indicator solution (green) is used for the alkalinity test of water quality (the more alkaline the water is, the more blue it will be).

The water quality of millet water purifier under the kitchen is neutral in the solution test.

The tap water is slightly alkaline, which shows that the millet water purifier under the kitchen is more suitable for human drinking after acid and alkali filtration.

Common test paper detection also come! The samples of four kinds of water were tested. It can be seen from the figure that tap water and concentrated wastewater are very alkaline. The pure water under the kitchen of millet water purifier is very close to distilled water.

Water quality test III: water quality electrolysis test

To be honest, every point decomposition will make the author afraid of water. Water quality electrolyzer, also called solid precipitation promoter, is a simple water quality detection method recognized by the U.S. Food and Drug Administration (F.D.A) and used for basic judgment of water quality. Because different water quality has different colors and is easy to carry, it is widely used in many countries.

After the electrical decomposition of four samples of water, the distilled water has almost no change before and after decomposition, while the impurities in the concentrated wastewater and tap water are decomposed, which can be seen to be full of various blue-green colors, which means that the millet water purifier will remove arsenic (arsenic), chloroform, tetrachloromethane, copper oxide, ferrous iron, bacteria, viruses Organic phosphorus (fertilizer, detergent and pesticide), aluminum sulfate, etc. are filtered one by one, so as to retain dissolved oxygen, trace elements and organic minerals beneficial to the body in pure water.

Only from the side can we really see how many impurities are in the sample water.

It's hard to imagine how many harmful elements in tap water that you drink every day enter the human body. Of course, the above simple test does not mean that the under kitchen type of Xiaomi water purifier can achieve a leap in water quality change, but the water quality change before and after filtering is obvious to all. Maybe you can buy a high-end mobile phone for 1999 yuan, Relatively speaking, the daily water quality closely related to human body should be paid more attention.

"Carrying exclusive apps, integrating into Xiaomi's smart ecological chain"

The performance of millet water purifier under the kitchen intelligence mainly lies in that millet water purifier can be added through millet smart home APP, which can realize humanized functions such as water quality monitoring, filter life reminder, etc., and can place an order with one button through millet mall, and 15 faults can be detected automatically.

If the Xiaomi router is installed at home, the Xiaomi water purifier will pop up a new device prompt in the Xiaomi smart home app after successfully searching its WiFi signal in the kitchen. The pairing can be completed quickly through simple configuration and remote control monitoring can be realized.

The Xiaomi water purifier of Xiaomi Smart Home APP mainly provides users with real-time TDS water quality data review, and self checks whether the device itself is normal. What is more unexpected is that the description of the hose indicator on the app function display interface is still kitchen style.

The settings basically provide some functions such as "renaming, network information, device sharing and firmware upgrading". It can be said that in addition to the intelligent performance of automatic fault detection, the Xiaomi water purifier does not have too many human-computer interaction functions.

In addition, the under kitchen type of Xiaomi water purifier also provides services such as "filter life, water use, and water use trajectory", which can give users the most intuitive water quality change data. One thing to note is that "the under kitchen type of Xiaomi water purifier will not remind users to change according to the internal conditions of the filter element, but will only estimate according to the installation time", In this regard, it is suggested that officials should consider further. After all, filter elements need silver. The water quality in each region is different, and errors will inevitably occur if they are estimated according to time.

Summary of experience of millet water purifier in kitchen:

As far as the millet water purifier is concerned, the water output of the under kitchen type is obviously larger than that of the above kitchen type, which is a very good phenomenon; Both of them adopt reverse osmosis technology, with similar functions. The under kitchen type is more suitable for families with cupboards, and maximizes the utilization rate of space; The only problem is that the discharge of concentrated wastewater is a bit of chicken ribs. It's a pity to discharge it directly. It's troublesome to find something to wait for.

After many days of experience, the author summarized the advantages and disadvantages of the experience of millet water purifier under the kitchen as follows:

advantage:

• Price advantage. Compared with some brands ranging from 5000 to 10000, it is a big burden to buy the machine and replace the filter element. Xiaomi water purifier is cheap in this respect.

• Space saving, no doubt hidden inside the cabinet, can play a very obvious role in the sense of space for the entire home, and is more suitable for home use than the kitchen style.

• The water outflow rate of pure water is increased from 1:1 to 2:1, which is not only a digital change, but also greatly reduces the water outflow efficiency and waste of water.

Disadvantages:

• The machine does not judge whether the filter element should be replaced according to the condition, but estimates it in the form of countdown, which will cause inaccuracy and waste.

• The concentrated water pipe is not controlled by one-way valve, which will easily cause sewage backflow, bacteria entry and moss growth. I hope to consider increasing it.

• The wash basin must be designed with two holes, otherwise, the door-to-door installation personnel shall pay extra for opening.