Water Purifier Water Filter Buying Guide: What exactly is the TDS ?

I don't know if you have found that recently the topic of drinking water health is particularly hot. Especially those of us who can't live without takeout and fast food every day, what kind of water to drink, how to pick a water purifier this matter, the attention is simply soaring! In a variety of shopping guide, often see a word called “TDS value”. If you are also a confused face to ask “what the hell is this?” Don't worry, this article is for you to solve the confusion. What is TDS value? Simply put, it's the amount of water-soluble impurities!
Let's start with this seemingly esoteric terminology. “TDS stands for Total Dissolved Solids and is used to indicate how many solids are dissolved in the water. These “solids” may include minerals, salts, metal ions, or some impurities that are not beneficial or even harmful to the body.

For example, you pour out a cup of tap water from the boil, looks clear and transparent, but in fact there may be calcium and magnesium ions, rust particles, and even some invisible heavy metals.TDS value is to tell you with the value of the water in the end how many of these “invisible army” hidden in the cup of water.

It should be noted that the TDS value is not a direct reflection of “good to drink” or “safe or unsafe”. It is only a reference indicator, just like the test scores can not fully illustrate your true ability, this value also need to be combined with other factors to see.


TDS meter, a small pen can do the test!
Since we are talking about TDS, we have to mention its little helper - TDS testing pen. This thing looks a lot like a thermometer and is super simple to use, insert it into a glass of water and a few seconds later a number will pop up on the screen. This number is the current TDS value of water samples!

If your tap water comes out at 700+, well, you really need to pay attention because this category usually means that the impurity content is high. If it drops below 10 with a water filter, congratulations, your filtration system is pretty strong.

But here's the kicker: low TDS is not necessarily absolutely good, and high TDS may not be all bad. For example, the mineral content of mineral water is high, so naturally the value of the test will be high, but these minerals are beneficial to the human body ah! So we can't judge arbitrarily based on this number alone.


Different people are suitable for different ranges of TDS
Talking about this, some people may begin to anxiety: “my tap water 500 more, is it simply can not drink?” Don't panic, in fact, the World Health Organization (WHO) believes that as long as the TDS in drinking water stays below 1,000 mg/l, it is safe and acceptable in most cases. But exactly what is considered suitable, but also has to vary from person to person.

-Ordinary family daily drinking: It is recommended to control between 50-300 is more appropriate. This range not only retains certain nutrients, but also avoids excessive impurities.

-Infants and young children and people with weak kidney function: it is better to choose a purity level below 50 or even close to zero, as they are more sensitive to the burden of mineral salts.

-People who like to drink natural mineral springs: you can accept a little higher, such as between 200-400, but the premise is a real natural living spring oh, not counterfeit products.

A sentence summarizes, according to their own physical condition and needs to choose is the king!


How to pick a water purifier? Keep an eye on the cartridge and effect
Now on the market a variety of types of water purifiers, ultrafiltration membrane type, nanofiltration membrane type, as well as the so-called “black science and technology” of reverse osmosis (RO) membrane type. In the face of a wide range of advertising, how do we choose?

Let's start from the actual needs:

1. only want to improve the taste, but do not want to lose too many minerals then ultrafiltration membrane or nanofiltration membrane type is more suitable for you, they can effectively intercept sand and rust and other large particles of pollutants, while retaining some of the beneficial elements. But the disadvantage is that it can not completely remove heavy metals or viruses and other harmful substances.

2. The pursuit of pure and unadulterated, but also want to control their own taste adjustment reverse osmosis (RO) technology is definitely the choice! This type can stop 99% of the impurities, including heavy metals and difficult chemical pollution. However, because the filtration is too thorough, it is even the mineral element is also removed, so many models are equipped with a “post plus mineralization” function, so you can adjust according to personal preferences similar to the taste of the mountain springs of healthy drinking water balance.

3. limited budget and want to take into account the basic filtration needs can be considered desktop small water purifier, although the overall performance is not as good as large-scale equipment, but wins in the convenience of saving money, and enough to meet the general family cooking tea and other scenarios.

How to look at the ‘TDS=0’ in the business promotion?
Often heard some brands boast of their purification technology is so powerful that ‘TDS is zero’, but here I want to splash a cold friend to remind everyone: ‘zero’ is an extreme state, not always necessary. After all, the complete absence of any salts and minerals can leave long-term drinkers electrolyte deficient, which can have an impact on health. So it makes more sense to find a balance rather than blindly pursuing extreme statistics.

In addition, if you find a product claiming that ‘TDS zero’, but the price is too low to be true, it must be vigilant, it is likely that just some cheap equipment by means of simple distillation to depress the value of the neglect of the real safety and security issues Oh!

Buy water purifier don't just figure cheap! A couple of hundred dollars on the market for a small device, look affordable but often change the cartridge frequency is extremely high, long-term cost is far more expensive than a one-time investment in a reliable brand. At the same time, remember that regular maintenance of the machine is also a key link, otherwise the good system is clogged or aging, will also lead to increased risk of secondary pollution da da ~!

Finally, I hope that everyone can find a preferred and practical partner for their own and their family's health! If you find this article helpful, you may wish to forward the collection of it, may also be able to help more friends in the tangled.