Water quality and water purifier, how to test the water quality of water purifier

1, brand effect, **definitely high, 2, the supermarket is after several layers**, **definitely high, if you can get to the factory price, it will be cheap.

I think because the RO machine is a pure water machine, and the minerals that are beneficial to the human body are filtered out (in fact, this kind of purification is not very healthy), so you test no impurities. Hehe. FYI!

From the perspective of water purifier products.

First of all, different regions, different water samples, need different products.

China's vast territory, unbalanced economic development, environmental pollution is not the same, tap water quality (water purifier process should be targeted, water purifier materials should be better), water pressure (water purifier structure should be more practical, safe) is very different, the previous water purifier, whether it is a domestic brand or an imported brand, all rely on a set of technology "to beat the world", the turbidity, hardness, residual chlorine, organic pollutants, heavy metals, minerals and other indicators of tap water can not be improved as a whole, a key can only open a lock,** There are only a few more brands to meet different problems, which increases the cost; Sometimes, according to the local situation, the filter media is customized at the factory to meet the local needs.

This objective fact determines that one product cannot meet the needs of different regions.

Secondly, consumer demand is diversified and requires different products.

At present, the water purifiers on the market have their own advantages, and when choosing as consumers, they should combine their own water quality and requirements and tolerance.

**There are many reasons for the difference. It is important that the money is "worth it". Electrolysis is not a problem at all, it is a common method for making water purifiers, and it should be said to be a "trick".

The barrel water purifier installed on the water dispenser generally uses activated carbon, ceramics, mineralization balls and other filter materials, the filtration accuracy is not high, it is a completely intercepted filtration method, it is inconvenient to clean, it is easy to form secondary pollution, and the amount of water is small, which is only positioned to solve the problem of drinking water, but in fact, people who know the filtration technology dare not drink.

PPM is simply because the content of calcium and magnesium ions in the water is too high, and when heated, it will combine with colloids and rust in the water to form hard scale, which is scale. The water purifier is to filter excess residual chlorine, colloids, impurities, etc., so that it no longer has the smell of bleaching powder and makes the water quality better. If you say that the hardness after purification is higher, it means that the calcium and magnesium ion content in it has not decreased.

PS The first question: A: We are now in the mall ro, the Midea clearance 840 (big mall chain).

Actually, the ** on the Internet is very cheap. But what about after-sales service? What about protection?

Are you sure it's not second-hand? Didn't the filter or parts be replaced?

RO's 600 yuan, I personally recommend that you don't buy it, either OEM, or the old product of clearance, or it is eliminated. Either it's fake or it's miscellaneous, and the water purifiers in the Chinese market are now messy. If you wait for the national standard to be introduced, you will find a Chinese water purifier with a new look!

A 600 RO may be available, but it is not recommended that you buy it. At least around 1000.

And you said that the big shopping mall is **expensive, which is normal. Any commodity is !!

P.S. Second question: You are using the method of electrolysis of water to test the water quality. The heavy metals in the water can't be tested by electrolysis like this!

Electrolysis of water, only the concentration of the solution can be tested. That is, the concentration of free ions in the water. High concentration, high conductivity!

There are also dark things, red, black, which are not contained in water. The water coming out of the water purification bucket is clean and can be quoted (if the product has a national test report).

The color of the water from your electrolysis bucket is because your electrolysis instrument, the electrode is iron, and iron will be generated by electrolysis, iron trioxide and other red or black substances. It's not a water quality issue.

In addition to the water filtered out by the RO membrane, the water filtered by other water purifiers will have a color in the electrolysis!! Because ordinary water purifiers can't filter ions!! Ions are electrically conductive!!

The water filtered out by ro is pure water and does not contain any impurities!! (contains very little salt) so it does not conduct electricity!!

P.S. Third question: The problem of ppm value. ppm refers to the concentration expressed by the solute mass as the parts per million of the total solution mass, also known as the parts per million concentration.

Do you know what the main part of the solution is? It's calcium, magnesium and sodium! And the water purifier (ordinary, no softening function) can not remove the solute dissolved in water!! Unless ro.

In other words, the ppm before and after remains the same!!

The reason for the increase is that activated charcoal improves the taste and makes the water more delicious! Or the water purifier is contaminated.

P.S. The fourth question: the problem of direct drinking. As long as there is a national test report, it can be !! You look for the seller.

Purely artificial, hopefully. Points!!

1. The price in the home appliance city is indeed high That's because there is a deduction point problem involved, but the price will not be as low as you say, and it may be of inferior quality. Second, you buy a clean water bucket to buy a targeted Some have a good water softening effect, some have more activated carbon, and the adsorption capacity is strong, and the most important thing is the final membrane to buy a good Personally, I think that the hydrophilic membrane of Qinyuan is still good The water equipment donated by Wenchuan ** Houqinyuan is a high hydrophilic membrane In the water purification, I still think that Qinyuan is more professional.

**The problem is that the online one is definitely cheaper than the supermarket monopoly! First: the difference in operating expenses, and second:

The difference in the purchase channel. Third: the profit pursued when selling is different.

Therefore, the difference is larger, not all of the **low ones are inferior goods, and you have to be optimistic about them. The water filtered by the wahaha and ro membranes is pure water, so there is no change when you experiment, and the electrolyzer, the tool you used to do the experiment, is unscientific to do this experiment. And it doesn't tell the story.

Insiders will know what's going on at a glance. I haven't done the rest of it, so I don't know very well.

Whether the water purified by the water purification bucket can be drunk directly depends on the filtration principle and filter element of your water purification bucket. Let's talk about it if there's a problem!

I have a water purifier here, if you are interested, you can learn about it,**:

1. Pure Chenglai.

Degree different: household water purifiers.

The water from the source is purified water filtered out by ultrafiltration membrane, which removes harmful substances such as sediment, rust, bacteria, and organic matter in the water, while retaining the minerals and trace elements in the water that are beneficial to the human body, just like mineral water. Pure water is filtered out by a reverse osmosis membrane, which filters out all the ions in the tap water, regardless of beneficial and harmful, and is very pure. 2. The degree of scaling is different

The direct drinking water purifier adopts ultrafiltration membrane separation technology, which can effectively remove colloids and suspended solids in the water, so the water with high hardness will only show some calcium carbonate and magnesium carbonate scattered white powder precipitation when reheated after being filtered by the ultrafiltration membrane, and it will not form stubborn scaling. 3. Different degrees of health benefits: pure water is drinking water that has passed through the separation and filtration device, which filters out the harmful substances in the water on the one hand, and the minerals and trace elements that are beneficial to the human body on the other hand.

30% of the calcium needs of children and the elderly come from water, and if you drink pure water for a long time, this part of the calcium will be gone.

Hello, there must be a difference, pure water refers to the kind of Nongfu Spring that gets some mineral water from the mountain, and clean water refers to the water after filtering the tap water, it is recommended that you install a water purifier, which is more convenient, because I have installed a water purifier from Wanbang at home, and I have used it for two years. It's convenient and nice.

1.The water purifier can filter some impurities in the tap water and heat it for people to eat.

2.Purified water, generally refers to bottled mineral water, refers to treated safe water or mountain spring water, which can be eaten directly.

Is there a **? There are only two kinds of water purifiers on the market, one of them.

BAI is an ultrafiltration machine, which is a DAO that achieves the effect of water purification through physical filtration and interception of Zhi adsorption, and one is a RO water purifier, which decomposes water molecules through RO membrane and then reorganizes to achieve water purification effect, and pure water is the cleanest and safest water. It is very simple to distinguish between the filter machine and the RO machine, the RO machine needs to use electricity, and it is basically equipped with a cylindrical pressure barrel. If its water purifier does not use electricity, it is basically an ultrafiltration machine, and what comes out is not pure water.

Remember, the electricity is the RO machine, and the pure water is produced, and vice versa, it is the ultrafiltration machine.

There is still an essential difference between the two, one is the difference in purity: the water that comes out of the household water purifier is in the dao meridian.

The purified water filtered out by the ultrafiltration membrane can remove harmful substances in the water while retaining the minerals and trace elements in the water that are beneficial to the human body, just like mineral water. Purified water, on the other hand, is filtered through a reverse osmosis membrane, which filters out the beneficial components of the tap water, making it as pure as distilled water. Second, the degree of scaling is different, the water purifier can effectively remove the colloids and suspended solids in the water, and the water with higher hardness will only present some calcium carbonate and magnesium carbonate scattered white powder precipitation when reheated after being filtered by the ultrafiltration membrane, and will not form stubborn scaling.

The third is different degrees of health benefits, purified water is the drinking water that has passed through the separation and filtration device, which filters out the harmful substances in the water at the same time, but also filters out the minerals and trace elements that are beneficial to the human body, so try not to drink pure water for a long time, especially the elderly and children.

The water filtered out by different brands of water purifiers is not the same, and it is generally no different from pure water.

When you buy a water purifier home, you need to test the water quality after its purification to see if the Kaiqiao sedan meets the standards. But many people don't know how to test, so what method should be used? The following is a practical detection method for everyone::

1. Detect residual chlorine in water.

The water purified by the water purifier can remove the residual chlorine in the water. If you want to test the water purification effect of the water purifier, you can prepare a residual chlorine tester and use it according to the instructions to know the amount of residual chlorine in the water. It is recommended to prepare two glasses of water, one cup of tap water and one cup of purified water during the test.

2. Detect organic matter in water.

In addition to residual chlorine affecting water quality, there are many substances that affect water quality, such as organic matter, heavy metals, etc. You can test it to see if the water purified by the water purifier is clean. Prepare two glasses of water, one for tap water and one for purified water, then put the aluminum rod and iron rod in the water and turn on the electricity for 1 minute.

You will notice that the color of the water changes, and usually, water with light color is cleaner and water with dark color is dirtier.

3. TDS value detection.

There is also a tool on the market to test water quality, the TDS pen, which is easy to use, as long as the tip of the pen is inserted into the water, you can see the value. The higher the value, the higher the purity of the water. Normally, the TDS value of the filtered water in the water purifier is about 20, which is too low to meet the standard, and too high is not very positive.

If you want to test the water purification effect of the water purifier, you can buy a TDS pen to try.

Different water quality values represent different levels of cleanliness, generally 0-50 is the water that can be drunk regularly

1.The water quality of the water purifier reaches 0 50, which can be directly drunk, and the water with this value is the standard for pure water.

2.The water purifier will be divided into different standards when testing different water quality, and when the water quality reaches 50 100, this water quality is relatively clean, and there is relatively no impurities in it.

3.When the water quality reaches 100 200, it belongs to tap water, which cannot be drunk directly, and there will be some bacteria and viruses in it, so it is necessary to boil the water and drink it.

4.When it reaches 300, the water quality is polluted water, and there are more impurities in the water, which is more serious to people.

Although the water purifier can ensure that the water that people drink is free of impurities, the water purifier needs to replace the filter element regularly. All kinds of filter elements in the water purifier have a certain service life, so it is very important to replace the filter element of the water purifier.

If the filter element is not replaced for a long time, the sediment in the filter element will slowly reduce the filtration capacity of the filter element, resulting in excessive impurities, polluting the water body, and affecting human health.

Filters of different materials:

Cotton. Function: The filtration accuracy is 5 microns, which is used as a primary filtration to remove sediment, rust, colloids, bloodworms, floating matter, suspended solids, and other large particulate matter in the water. The recommended replacement period is about 3-6 months.

2.Pre-sintered carbon composite filter element.

Function: Removes chlorine, organic compounds, foul odor, odor, turbidity, bleaching powder.

Membrane. Function: The filtration accuracy is only microns, which can remove all the residual chlorine, inorganic impurities, bacteria, viruses, heavy metals and many other subtle harmful substances in the water. It is recommended that the replacement period is about 24-48 months.

4.Post-sintered charcoal.

Function: Improve taste, long-lasting antibacterial. The recommended replacement period is about 18 months. <>