A: I am also super lazy. For the sake of little brother's health, remember that no matter what the name of his equipment is, it depends on whether there is RO membrane.
In my opinion, only RO membrane filtration is the real direct drinking machine, which can remove bacteria and heavy metal ions! As for other ultrafiltration machines, net kettles or multi-stage direct drinking machines, as long as there is no RO membrane, I also suggest that you boil before drinking.
02. Q: Is the water purifier with as many filter elements as possible? I heard that only reverse osmosis with RO is a useful water purifier? thank you
A: This question is relative. The more filter elements, the more thorough the filtration, but it has a great relationship with the types of filter elements. For example, the five-stage PP cotton filter element is not as thorough as the first-stage RO membrane filtration. To make an image metaphor, the filter element is a fishing net, and the impurities are fish. If the hole in the fishing net is big, no matter how many layers are covered, small fish can't be caught.
"Only reverse osmosis with RO is a useful water purifier" is not rigorous.
Water purifier includes pre-water purifier, central water purifier, ultrafiltration machine, water softener, RO membrane reverse osmosis direct drinking machine, etc. Each type has its specific efficacy and function, and it is selected according to the needs. But my point is that only RO membrane reverse osmosis water purifier is the real direct drinking machine.
03. Q: Is it better to buy a plug-in water purifier or one with a filter?
A: The question is not too detailed, so I will answer it according to my understanding.
The kind of plug-in you mentioned is generally a RO membrane reverse osmosis direct drinking machine, which pressurizes the water supply through RO membrane.
Filter shall refer to filter element. Few water purifiers on the market now use a single filter element. Maybe you're talking about the kind where several filter materials are integrated into one filter element consumable, and the whole filter element needs to be replaced when replacing it.
No matter what kind of filter material it is, from the point of view of direct drinking, RO membrane direct drinking machine is definitely more recommended (but it will produce waste water), but if you don't need such high filtering accuracy, other types of water purifiers will have no big problem, just boil and drink.
You didn't specify the brand model, and I don't know what kind of product you are talking about, so I can't give you direct purchase advice. But I guess the filter element is made of either space limitation or rough filtration. Either way, it is a compromise and expedient measure. Don't use this if conditions permit.
04. Q: Do ordinary families need to install a central water purifier?
Whether to install a central water purifier depends on personal requirements and belongs to advanced equipment.
Considering the cost of purchase and use, the difficulty of renovation and the cost performance ratio, I suggest: pre-installation > RO water purifier > ultrafiltration machine > central water purification. Ensure the entrance safety first, and then improve the comfort. Water softener is to improve comfort, not a necessity.
The function of central water purification is to further purify on the basis of pre-filtration. Can be divided into ultrafiltration membrane and ultrafiltration membrane.
No need for ultrafiltration membrane: it can effectively remove chlorine, rust, heavy metals, virus algae and solid suspended solids from water, making the treated water clear and clean.
With ultrafiltration membrane: it can not only sterilize but also achieve the above effects, which is different from ultrafiltration machine in terms of large processing capacity.
After installing central water purification, RO water purifier is installed, which greatly prolongs the service life of subsequent water purification equipment and water appliances. However, the disadvantage is that the central water purifier is generally large and unfriendly to small units. So it depends on everyone's needs and conditions to decide whether to install it.
05. Q: The central purified water has a large volume, and the small apartment occupies too much space. Is there a compromise? I heard that the filtering effect would be better if the front was replaced with a blue bottle or something. Or other facilities that can clean water near the center.
A: When you say big blue bottle, you may mean Pintel's big blue. This product is equivalent to the front with a filter element, and the purification effect is different according to the different filter elements.
There is a mminii central water purifier in the package. The principle is actually the same as that of the central water purifier. The required installation size is very small. If space is limited, you can consider it. But again, under the premise of the same filter material quality, the larger the volume, the greater the dosage, and the better the filtering effect.
The following figure is a sign, not a product recommendation:
Q: Great Sage, please ask me. According to the design of your home, it seems that even if the central clean water is removed, the impact will not be great. Domestic water is too soft to drink ro purified water, so what is the function of central purified water?
A: Central water purification is the icing on the cake. All the water in the main pipeline passes through the central water purification to remove residual chlorine and most impurities, thus reducing the damage of residual chlorine to the skin during bathing, reducing the purification burden of the terminal water purifier and increasing the service life of the filter element.
It is emphasized that soft water is not pure water, but calcium and magnesium ions in water are removed, and other harmful substances remain unchanged.
07. Q: Is it enough to simply improve the water quality such as bath water and install pre-filtration? Which type is better?
A: If it is a simple upgrade, the simplest thing is to add a pre-filter to filter out the sediment first. The second is the central water purifier, which can remove residual chlorine and reduce the harm to human body.
Then, there is a central water softener, but the price and later use cost are higher (adding salt). However, bathing and washing with soft water is another experience. For example, the scale is greatly reduced, and the clothes are slippery after washing, and the clothes will not become harder and harder. There is a cheap solution about shower softener. Search for "shower softener" on Taobao, and you will be pleasantly surprised. The price is several hundred yuan.
08. Q: Now that the house is being renovated, it has been decided to install pre-cleaning water. If the water used for washing and bathing is relatively clean (after all, hair loss stars are bent on reducing the chance of hair loss ...), is it recommended to install a water softener for washing and bathing?
Your request is very clear. You are an accurate user of water softener! If the water is too hard, it will really aggravate hair loss. Now you can consider the waterway design.
09. Q: Does the household water purifier need to be equipped with a pre-filter screen?
A: Yes! Pre-installed on the main pole of the house, filtering large-particle impurities such as sediment, protecting the water heater, and the price is not expensive, and there is no post-maintenance cost for backwashing, once and for all, why not?
10. Q: Is the pre-filter and hollow fiber filtration effective?
What is hollow fiber? The filtration materials of general water purifiers are PP cotton, activated carbon, ultrafiltration membrane and RO membrane. I guess that thing you said should also be a filter material, similar to the function of activated carbon. However, the filtration accuracy of this kind of thing is average, so don't drink it directly, but cook it.
Recommended scheme: RO membrane reverse osmosis front double outlet water purifier.
1 1. Q: Can a pre-filter be installed after renovation? Will it affect the water pressure? Recommend brands!
Answer: ① Because the main pipeline is connected in front, it is best to fix it when decorating. It is not impossible to add decoration, but it is necessary to consider whether there is enough space for layout. Any plumber can handle it if there is enough space. Pay attention to the water inlet direction of the machine when installing, and don't install it backwards.
② Before installation, it depends on which pre-filtration is more suitable for you. The greater the filtration accuracy, the stronger the attenuation effect on water pressure. I don't know how much water pressure you have now. The accuracy of pre-filtration is between 40- 100 micron. If you are afraid of low water pressure, you can choose a larger aperture.
(3) If it is backwashing front, there is no technical content, depending on what price you want to buy. There is not much difference. Hans Hill, 3M, Honeywell, domestic Midea, Qinyuan and Haier are all acceptable.
12. q: the more you look at it, the less confident you are that you can find a suitable water purifier. Did Great God recommend two brand models for home use?
Tell me about my home: I use Qinyuan, a direct drinking machine. It is not recommended to import if it is pre-installed. This thing doesn't have much technical content, and domestic backwashing is enough. I can't control how much money I want. Water softener, Yikou and Pintel.
However, I can recommend several brands to you, all of which are established and reliable (that is, some brands have high premiums, which means we are stupid and rich):
① Ecological water (ecological water)
American brand, founded in 1925, invented and patented a household automatic water softener. Headquartered in St. Paul, Minnesota, USA, it has 1 1 global production base and sales company, 4 R&D centers, and established a production base in China in 2007.
② 3M
American brand, founded in 1902 and headquartered in St. Paul, Minnesota, USA, is a world-renowned multinational enterprise with diversified products, covering industries, chemicals, electronics, electric power, communications, transportation, automobiles, aviation, medical care, safety, construction, cultural and educational offices, commerce, household consumer goods and other fields.
③ Honeywell (Honeywell)
American brand, founded in 1885, headquartered in Morristown, New Jersey, USA. Like 3M, it is a diversified enterprise, whose business involves aerospace products and services, industrial and home building control technology, automotive products, turbochargers and special materials.
④ Kurigan
American brand, founded in 1936 and headquartered in Illinois, USA, is a high-end water purification brand. All products, wading parts, materials and raw materials have passed the product certifications of US Department of Health such as NSF, WQA, IAPOM, UL and CE.
⑤ Axani/A.O. Smith
Axani is an American brand, founded in 1997, with 26 global patents. Its product performance and materials have been certified by NSF, and the domestic sales are mainly ultrafiltration machines.
2065438+was acquired by a.o. Smith in September 2006.
⑥ Pintel/Love Hewlett-Packard
Pintel Group, headquartered in Minnesota, USA, was established in 1966. Its subordinate water group is a professional water treatment equipment manufacturing company, with more than 50 branches around the world, with employees15,000 and annual turnover of about 8 billion US dollars. It is one of the 500 largest industrial enterprises in the United States.
Aihuipu was founded by Mr Oliver at 1933, and acquired by Pintel in 2004, but both of them operate independently in China.
All landowners Dongli
Founded in 1926 and headquartered in Tokyo, Japan. Toray Group is a world-famous high-tech multinational enterprise with organic synthesis, polymer chemistry and biochemistry as its core technologies. One of the earliest enterprises engaged in the development of reverse osmosis membrane technology in the world, Japan's water purifier market share is the first. At the same time, it is also the only membrane manufacturer in the world that has developed RO, NF, UF, MF and fiber filter cloth series membrane technology and provided a full range of commercial membrane products to the market.
8 beautiful
One of the drafting units of national standards related to water purifiers.
Pet-name ruby angel
One of the earliest enterprises to enter the water purification industry in China.
Attending Qinyuan
Focusing on R&D and manufacturing water purifiers, drinking fountains and other products, the domestic sales volume is leading, and it is one of the drafting units of national standards related to water purifiers.
? Haier Group
20 10 set up a joint venture with Strauss in Israel to enter the water purifier industry.
That's all for today. Please pay attention to the second issue. As can be seen from the problem, many people still don't know much about water purification equipment. After all, different types of water purification equipment have different functions. We should choose the products that suit us according to our own needs. Don't let others blindly recommend it. Remember "My honey is your arsenic".
13. Q: Is it necessary to install water purification equipment? Do you have any recommended brands?
A: ① necessary! As for the reason, click on my avatar and there is an article about water purification system. The expert said that if the budget is limited, put it in the front first, and then add a double-outlet RO membrane reverse osmosis water purifier.
② It is more practical to look at consumables than brands, and pay attention to where RO membrane is made. Dow and GM are the first choice, followed by Han Shi and Dongli, and then made in China. However, Dow films are also divided into domestic processed Dow films and original Dow films, and then there is the problem of true and false products, which cannot be solved. The water is too deep, and it is relatively reliable to buy brands that you have heard of.