The original protagonist of this paper is the LAICA net kettle with the model of EP117A. Some friends may ask, this Lycra is called a net kettle, and there are many filter kettles on the market, so what's the difference between this one?
From a straightforward point of view, the filter kettle only roughly filters out particulate impurities, scale, heavy metals, odors and so on. In the water, but it can't do anything about some bacteria and viruses in the water, so the water filtered by the filter kettle can't be directly drunk; The net kettle adopts multi-stage filtration, which can filter out harmful substances such as particulate impurities, scale, heavy metals and odor in water, so the filtered water of the net kettle can be directly drunk. This is the difference between a filter kettle and a net kettle. The filtered water of Lycra net kettle to be introduced today can be directly drunk, and its microbial barrier filter element can effectively filter 99.999% bacteria.
The official propaganda is like this. As for the actual effect, this paper will carry out a series of tests, and finally violently disassemble the filter to see what is in the filter.
Improving the quality of life starts with the quality of drinking water, which has always been my life philosophy. In addition, there are air purifiers. Water and air are closely related to everyone's health, so I have been working on water purifier and air purification for the past two years. This time, I planted this Lycra net kettle, which is mainly convenient to use, small and portable, and can filter out mineral water that can be drunk directly.
Let's get down to business and introduce this Lycra net kettle ~
▲ Let's briefly introduce the brand Lycra. Lycra 1974 was founded in Italy, focusing on healthy drinking water for 45 years. Its products sell well in more than 60 countries and regions around the world and are regarded as the benchmark brand in net kettle.
▲ I bought this Lycra EP 1 1 17A net kettle this time, with double filter elements for filtration. The capacity of the whole network kettle is 3.5L, in which the capacity of the clean bucket is 1.2L, and the filtered water can be directly drunk.
Lycra Leica EP11/7a Filter Kettle Home Imported Water Purifier Direct Drinking Kitchen Tap Water Filter 399 Yuan Tmall Select Buy Read Encyclopedia.
Attached is the link of Lycra Tmall flagship store. Merchants often have preferential activities, and value friends who plant grass remember to buy when the price is good.
1. Unpack the goods
▲ The outer packaging of Lycra net kettle. The model of this net kettle is EP117A, and it is available in three colors: starry blue, ocean blue and early green.
▲ There are two filter elements on the side of the outer package, although it is in English.
The following are the relevant parameters of this net kettle, which are in Chinese and can be understood.
▲ When unpacking, first come to a family photo, including: net kettle's main body, hand pump, two filter elements and instructions.
▲ This net kettle has two filter elements, the one on the left is a double-flow efficient filter element, and the one on the right is a microbial barrier filter element. A detailed description of the filter element will be discussed below.
▲ First install two filter elements. The picture above shows the state of daily use. As for the activation of the filter element, it will be mentioned later. I chose the sea blue model. In fact, the clean bucket inside is blue, and the net kettle outside is white and transparent. The face value of this Lycra net kettle is quite good.
Let's take a look at some details of this Lycra net kettle ~
▲ White cover, and the circular position is the water injection port. You don't need to take off the cover for daily use, just aim the faucet directly at the water injection port to inject water.
▲ Dust-proof spout cover will automatically open with the water flow when pouring water, and it will automatically cover after pouring water on the table, which is clean and hygienic. This design is still great.
▲ Filter flowmeter, with four indicator lights on it, which can show the life of filter element.
▲ The bottom of the kettle is elegant in design. The white one is ABS anti-collision strip, and the inside is silicone anti-skid edge.
▲ net kettle's handle is ergonomically designed, at least when you lift net kettle full of water, you won't feel uncomfortable.
▲ Exhaust hole of the filter pot. Careful observation shows that there is a small hole in the silicone cover. Through this small hole, the pressure in the temporary water storage space of 1 filter element can be equal to atmospheric pressure, ensuring smooth filtration.
▲ Clean bucket, capacity 1.2L, that is, 1.2L water can be purified after each water injection. On both sides of the exhaust passage are metal conductive columns, which are part of the flowmeter and used to calculate the life of the filter element.
▲ Finally, let's take a look at the real family portrait. The whole net kettle can be disassembled into five parts, plus 1 hand pump.
Second, the filter
▲ If you want to drink mineral water directly from tap water, the key depends on the filter element. This net kettle is equipped with two-stage filter elements to achieve six-stage filtration, in which the double-diversion high-efficiency filter element undertakes the five-stage filtration task, and the microbial barrier filter element intercepts the bacteria that cannot be filtered by the former, thus obtaining mineral water that can be directly drunk.
1, double-diversion high-efficiency filter element
▲ Double-diversion high-efficiency filter element is a first-class filter element in net kettle, with water purification capacity of 150L, made in Italy.
▲ The front of the double-diversion high-efficiency filter is said to be inspired by the Alps. The top of the filter element is designed with lifting rings, which can be easily taken out when replacing the filter element. The two independent water outlet holes at the bottom are double diversion holes, and the water outlet rate can reach 0.3L/min.
▲ At the top of the double-diversion high-efficiency filter element, the meshes on both sides are the water inlet of the filter element and the pre-filter screen of the filter element.
▲ Let's take a look at the internal structure of the dual-diversion high-efficiency filter element. This filter element adopts five-layer and nine-order filtration technology: the first layer is pre-filter screen to filter sediment, residue and suspended matter; The second layer is an ion exchange resin mesh, which is used to filter scale, heavy metals and tiny particles; The third layer is silver-loaded coconut shell activated carbon, which is used to filter residual chlorine, rust and pesticide residues; The main filtration function is realized by the upper three layers, and the latter two layers are mainly to prevent the leakage of filter powder and neutralize the pH value at the same time.
2. Microbes block the filter element
▲ Microbial barrier filter element is the second-stage filter element in net kettle, with water purification capacity of 1000L, which is also made in Italy.
▲ Microorganisms block the front end of the filter element. This filter element is mainly used to intercept bacteria. It is this filter element that makes Leica's net kettle different from other filter kettles. Only the water filtered by this filter element can be directly drunk.
▲ Microorganisms block the top of the filter element, which is the water inlet of the filter element. You can vaguely see the hollow fibers inside. Don't worry, I will disassemble it later, so that the majority of value friends can see it more carefully.
The service life of the above two filter elements is also slightly different. Double-diversion high-efficiency filter element can filter 150L water or use it for about 2 months, and microbial barrier filter element can filter 1000L water or use it for about 1 year. Of course, this is official data, and the actual use time can be changed according to the water quality of local municipal tap water.
Third, the use of goods.
The above shows the out-of-box appearance of this net kettle, and then introduces the core component of the net kettle-filter element. Let's start using it ~
The activation process of the two filter elements is still very special. First, activate the dual-diversion high-efficiency filter element.
▲ After removing the double diversion filter element, you will find that black activated carbon is more or less attached to the outside of the filter element, so the first step is to remove the activated carbon attached to the surface of the filter element with clear water, and then soak it in water for 15 minutes. After this operation, the filter element is activated.
▲ Then activate the microbial barrier filter, which is slightly more complicated than the former. When activating the filter element, you need to use the hand pump included in the product package.
▲ First remove the pump cover, then fix the filter element at the lower end of the pump pipe, then fill the pump pipe with water, and finally use the pump cover to force the water out of the filter element. Repeat the operation for 5 times to activate the filter element.
▲ Dynamically display the activation process of microbial barrier filter. Remember to activate this filter with the water filtered by the double diversion high efficiency filter. Do not use tap water to clean the filter blocked by microorganisms. This is mentioned in the filter manual, so please follow the instructions. I activated it directly with purified water filtered by the water purifier.
The two filter elements are respectively activated and installed on the clean water bucket, and the dual-diversion high-efficiency filter element can be directly press-fitted, and the microbial barrier filter element needs to be screwed into the bottom of the clean water bucket. After the filter element is installed, the tap water can be filtered. It is suggested that the purified water filtered in the previous few times should not be drunk, and it should be used to water the flowers and should not be wasted.
▲ Let's demonstrate the water injection port that can be used without opening the cover. Directly inject water into the water injection port, and the water flow will open the cover, so that it is not necessary to open the cover every time water is injected. This design is still very good, which brings great convenience to users.
▲ After the filter element is used and replaced for the first time, it is necessary to press the Reset 3S key of the flowmeter for 6 seconds to start recalculating the life of the filter element. By the way, this flowmeter is used to calculate the double-diversion high-efficiency filter element, and the life of the filter element blocked by microorganisms is about 1 year.
▲ Let's take a look at the latest generation of intelligent flowmeter, which has been greatly improved compared with the previous two generations. The third generation flowmeter calculates the life of the filter element by combining the data of time and filtration capacity. The service life of the dual-diversion high-efficiency filter element is to filter 150L water or use for 2 months, whichever comes first. Two metal conductive columns in the clear water bucket are used to monitor the filtration speed.
▲ If you want to know the service life of the filter element during use, you can shake the kettle and the indicator light will light up. Four lights are on at the same time, indicating that the service life of the filter element is 100%, and the remaining three lights are 75%, and so on. If a light is on and flashes continuously, it means that the service life of the filter element has been used up, and you can replace it with a new double-diversion high-efficiency filter element.
▲ Drink mineral water directly first.
Although all kinds of water are H20, the taste is still different. In view of the subjectivity of this tasting, I specially gave each family a cup, and the reference was cold boiled water.
Family A: It means that the filtered net kettle tastes sweeter than Liangbaikai;
Family member B: I feel that the water filtered by net kettle feels soft in my mouth;
Family member C: My mouth is numb and I can't tell them apart.
Ding Jia: Boiled cold water always has an unspeakable taste, but the filtered water in net kettle doesn't.
▲ You can also use net kettle to filter water when cooking in the future. Great!
Fourth, test the article.
▲ In order to verify the filtering effect of this net kettle, I also spent a lot of money to buy a set of tools for testing water quality at Ma's father's house.
Let's start all the tests. First of all, some of the tests I have done are purely entertaining and curious, and there is no rigorous science. After reading them, you will probably know the numbers.
1, residual chlorine test
▲ First, let's test the filtering effect of the net kettle on residual chlorine. The beaker on the left is tap water, and the beaker on the right is water filtered by the net kettle.
▲ If the water contains residual chlorine, then drop the residual chlorine reagent and the water will turn yellow. Under the dynamic demonstration of the experimental process, the result is that the tap water on the left is yellow, indicating that the water contains residual chlorine, and the net kettle filtered water on the right has no color, indicating that it does not contain residual chlorine. This experiment proves that this Lycra net kettle has residual chlorine filtering effect.
2. Mineral testing
▲ Next, check whether the net kettle will filter out the minerals in the purified water and compare the purified water filtered by the RO membrane water purifier.
▲ The water on the left is pure water, and the water on the right is filtered by a net kettle. Take a mineral detection pen to detect two kinds of water quality. The result is obvious. The indicator light does not light up when pure water is inserted, but lights up immediately when clear water is inserted, indicating that the water filtered by net kettle contains minerals. This experiment proves that this Lycra net kettle will not filter out the minerals in the water.
3. Yakult filtration test
▲ Take Yakult as an experiment, mainly thinking that it contains fungi and testing the filtration of fungi. Of course, I can't guarantee whether the probiotics in it are dead or not.
▲ Add water to dilute Yakult, then pour it into the kettle and filter.
▲ Look carefully at the water filtered by the two-stage filter element, which is transparent. I took a curious sip and found that the filtered water was still a little sweet. It is a little sweet because the diameter of sugar molecules is 0.00 1 micron, and it can pass through a filter with a pore size of 0. 1 micron. The fungi in Yakult are all about 0.2 microns, so they can't pass naturally. After trying it, it really doesn't smell of lactic acid, which shows that microorganisms completely block the bacteria filtered by the filter element.
4. Coke filtration test
▲ Take Coke for the next filtration test. My original intention is to filter out transparent liquid, which shows that this filter element is great. We will wait and see.
▲ Diluted cola is also used for filtration test.
▲ Dynamically display the filtering effect, just like filtering Yakult, the liquid filtered by the two-stage filter element is colorless and transparent, which has achieved my expected effect.
5, yellow mud slurry filtration test
▲ Let's test the yellow mud water. Municipal tap water can't guarantee that there will be rusty molten iron and yellow mud one day, so I found some raw materials in the flowerpot.
▲ Add water and yellow mud, stir well and filter.
▲ As a net kettle, before the test, I felt that there was no problem in filtering yellow mud water. Of course, the test results are the same. The water filtered by the two-stage filter element is colorless and transparent.
▲ Looking out, in the spirit of dedication to science, I still took a small bite, and there is nothing different.
▲ After the above series of experiments, I'm going to take the filter apart to see what's wrong. Please take out the needle-nosed pliers and art knife that were violently dismantled.
▲ Double-diversion high-efficiency filter element is relatively easy to disassemble. The plastic layer at the top of the filter element is very thin and can be easily cut with a utility knife.
▲ Double-diversion high-efficiency filter element, filled with small black and white particles. In fact, the black one is activated carbon and the white one is acrylic cation exchange resin.
▲ Microbial clogging of the filter element is a bit difficult to disassemble, and it really needs violence. When you open it, you can find that it is full of these things. This is hollow fiber.
▲ At the bottom of the filter element, you can see that the open ends of all hollow fibers are solidified here.
Verb (abbreviation of verb) summary.
This lycra was bought from a net kettle. It was used for almost a week, and then a set of filter elements was scrapped for experiments. The loss is not small
Actually, I just want to see how the filtering effect of this net kettle is. Several small filtration experiments have proved that its filtration ability is still very strong. Let's sum up the experience of using it. The results of the violence test are already obvious.
This Lycra net kettle is very convenient to use, with high value and small size, and is suitable for all kinds of scenes. You can use it in the kitchen or office. The design of water injection port and dust-proof spout cover is very humanized, and the filtration speed of 0.2L/min can also meet the needs of most families. Net kettle is equipped with intelligent flowmeter, so you can know the life of filter element at any time by shaking net kettle. In hot summer, if you want to drink cold boiled water, you need to boil the water first and then cool it. With this Lycra net kettle, you only need to fill the net kettle with tap water, and then you can turn off the mineral water with good taste. It really feels good. Compared with the RO membrane water purifier at home, this Lycra net kettle also has its advantages. First, the filtered water contains minerals, which can supplement the trace elements needed by the human body. In addition, net kettle will not produce waste water in the process of water purification. In addition, it is found that the service life of the flowmeter in the manual is about 2 years, which actually means that the battery life of the flowmeter is 2 years. What do I want to do for so long? Maybe Leica will have new equipment by then. How cool it is to change it directly. To improve the quality of life, we should start with drinking water and subtract tap water. A simple net kettle can filter mineral water that can be directly drunk from complex tap water. Why not?