Home installed water purifier, TDS value is really the lower the better? This article tells you the truth!

Recently, some friends are asking: "I just bought a water purifier, measured TDS value is quite high, this is not qualified ah? In the end, how much is considered safe?" In fact, not only her, I bought my own water purifier was also a variety of values, parameters confused. Everyone says the lower the TDS the better, but is it really so simple? Today we will talk about the “water purifier and TDS value” of those doubts to understand, and teach you how to choose a water purifier to avoid the pit.

First of all, what is TDS, full name Total Dissolved Solids, is “total dissolved solids”. In layman's terms, it is a liter of water in the end dissolved how many kinds of miscellaneous things. Minerals, salts, metal ions, some of which are good for you, such as calcium and magnesium, and some of which may affect your health, such as heavy metals. At this time you will find that the TDS is not simply to determine the “dry or not clean”, but reflects the total amount of dissolved substances in the water a number.

Often see people sunshine home tap water, bottled water, bottled mineral water, as well as a brand of purified water, a variety of TDS test pen data flying. For example, tap water is about 100-300 or so, some neighborhoods can be more than 400; mineral water is generally dozens or even hundreds, and RO reverse osmosis filtered out of pure water, can be reduced to single digits or even close to zero. So many people subconsciously feel that “the lower the TDS = cleaner”, but the reality is not so.
[Tips]--TDS of tap water in different regions originally varies greatly: the north is high, and the south is generally lower. This is related to the local geographic environment, the type of water. No need to blindly compare the value of others!

So, how do we understand the TDS indicator? For example, if you drink a cup of natural mountain spring rich in calcium and magnesium and other trace elements after strict sterilization treatment, it is actually very beneficial to the human body. But if you take it to the test, TDS may be higher than some ultra-pure RO straight out of the drinking water. Therefore, “high” is not equal to dirty, “low” may not be the healthiest.

Why is this so? Because RO reverse osmosis membrane technology can isolate almost 99% of dissolved substances, including minerals that are beneficial to the human body. For example, the tap water through the RO membrane filtration, it is true that heavy metals, organic pollutants and bacteria and viruses basically all removed, but even the good trace elements are also taken away. If you only drink this kind of ultra-low TDS (single digit) “soft water” for a long time, theoretically it is indeed safe, but it lacks certain nutrients, which is not perfect for some people (such as pregnant women and children).

What kind of “ideal drinking water” do we need in our daily lives? Here again to give you a focus: [purchase advice] - the World Health Organization (WHO) recommended drinking TDS 50 ~ 500mg / L of clean and safe drinking water. China's “drinking water health standards,” the provisions of the tap water factory TDS to be less than 1000mg / L, most cities far from the standard. And like the bottled mineral water on the market usually between 60-200, is a more ideal range.

Therefore, when we choose home water purifier, do not have to excessive pursuit of the limit of low value. Some people like to drink the taste of sweet and soft a little bit, you can choose with RO technology and with the “rear remineralization” cartridge of the new products, which can ensure safety, but also to supplement the appropriate minerals. If you are really worried about microbial and heavy metal contamination, then directly choose RO + composite activated carbon + UV sterilization of that type, one step to save effort. But remember, do not rely solely on the “TDS test pen” a number of conclusions for your health - especially do not believe in jittery fast hand pseudo-science videos!

Let's get back to the question on everyone's mind: Is it necessary for the average household to have a professional meter to monitor their daily TDS?

Realistically speaking, most people do not need to be obsessed every day. Legitimate brands of filter cartridges are replaced in time when the life of the cartridge is up, and the taste and odor can be used to make a preliminary judgment. If you really want peace of mind, you can also occasionally ask a third-party testing organization to do a comprehensive assessment. Nowadays, many smart models of machines are integrated with automatic reminders and real-time display of the remaining life of the function, very convenient!

Comparison of mainstream products on the market, generally three or four hundred dollars below the small brand tends to do only simple activated carbon or PP cotton filtration, can only roughly intercept large particles of impurities such as sand and rust, a real threat to the health of small molecules of pollutants can not help. The price of more than one thousand dollars of the big brands, more multi-stage combination of filter design (PP cotton + front carbon + ultrafiltration / nanofiltration / reverse osmosis + rear activated carbon), not only to effectively reduce heavy metals, but also take into account the retention of some of the high-quality ions, is currently recommended for home users to get a class.

Finally, a few tips for you to use: [Daily Precautions

1. Do not allow the machine to be out of service for a long time, otherwise it is easy to breed bacteria, at least once a week to start rinsing;

2. Regular replacement of the filter element, do not be lazy to save trouble, otherwise it will be counterproductive;

3. If the whole house pipeline is old or the secondary water supply is usually turbid, you can consider the front-end addition of coarse filtration equipment to improve the overall safety factor;

4. Healthy diet with a balanced, rely only on drinking ultra-pure softened over the “zero degree” pure water is not desirable, if possible, you can properly rotate different types of natural beverages.

The most important thing is to have a balanced diet. At this point, I believe you have realized that the TDS value at home is not a universal scale that determines everything! It just helps us to provide a reference and does not represent the whole health, safety or not. When choosing to understand more about the core technology and the actual demand, according to the family population situation, reasonable planning, not blindly follow the most expensive or lowest parameters, this is the real science and rational way of consumption!

Interactive tips] 🔍 What type of drinking water is your family drinking now? Have you ever encountered the strange “pen test scam”? Let's talk about your experience in the comments section!