Water purifiers are not an IQ tax, but one advises you to buy with caution

Water purifiers are not an IQ tax, but one advises you to buy with caution

A household water purifier pit? No pit?

With the improvement of the family level, all families are more concerned about their own and their families' health problems, especially drinking water safety, that is closely related to health! In recent years began to love fitness, exercise because a lot of sweating and thus accelerate the loss of body water, this time if the intake of residual chlorine, heavy metals or microbial overload of water, not only may cause intestinal discomfort, but also through the skin metabolism aggravate the inflammatory response; aging parents, not to mention that, if the long-term drinking of water with a high TDS value of the burden on the kidneys will be aggravated; these two years, house also focus on the evaluation of the Dozens of large and small water purifiers on the market, this thing really relates to the quality of our survival every day, is it difficult to buy? Not difficult, after all, performance and technology on those! Pit much? Really quite a lot! Slow water, purification is not complete, as well as the cost of core replacement, etc., inadvertently stepped directly on the mine!

Second, how to choose a water purifier? Tips can be a lot of

1️⃣ Filtration technology: the cornerstone of water quality and safety regardless of the concept and modeling to play with more flowers, the core of the household water purifier is always filtering. The filtration technology of the water purifier is mainly divided into four: microfiltration, ultrafiltration, nanofiltration and RO reverse osmosis.

For families who need drinking water in their daily lives, especially families with pregnant women, infants and young children, the installation of RO reverse osmosis water purifier is a better choice.RO reverse osmosis water purifier usually adopts a combination of multi-stage cartridges, each link synergistically to enhance the filtration effect.

PCC composite cartridge: focusing on pre-purification, integration of PP cotton and activated carbon and other multi-layer filtration, PP cotton cartridge can effectively intercept sediment, rust and other large particles of impurities, activated carbon cartridge can be efficiently adsorbed residual chlorine, color and odor and part of the organic matter, to improve the quality of the water and to protect the reverse osmosis membrane, to prolong its service life;

Pure RO Membrane: the core cartridge, but also a precise line of defense, 0.0001 micron filtration precision can effectively intercept the bacterial (bacteria). Filtration accuracy can effectively intercept bacteria (0.2-5 micron), viruses (0.02-0.1 micron), heavy metals (such as lead, mercury, arsenic), pesticide residues, microplastics and other pollutants, desalination rate of 94.5% (the same price range is considered to be very high);

Post-optimization Filter: Post-activated carbon and non-woven fabrics to further optimize the taste and adsorption of residual odors to ensure that the water is pure and sweet. Progressive filtration, from coarse sieve to fine filter layer by layer, can effectively filter 88 kinds of common harmful substances in life, purified water is equivalent to pure water, no need to boil can drink directly, and drink a little sweet, with this water to the baby straight drink, soak powdered milk or do complementary food, are particularly like.

Warm tips: other types of water purifiers such as nanofiltration, microfiltration and ultrafiltration, the filtration accuracy is lower, the filtered water is generally not directly drinkable, for the sake of health, it is recommended that the water must be boiled before drinking.

2️⃣ Flux (G): affecting water efficiency

Flux refers to the amount of water that can be filtered by a water purifier in 24 hours under ideal conditions, generally expressed in units of G. The flux is the amount of water that can be filtered by a water purifier in 24 hours under ideal conditions. According to the formula: flux (G) ÷ 24 × 3.785 ≈ water speed (L/min), in general, the larger the G value represents the larger the flux, the faster the water speed, but the actual water speed will be affected by the performance of the RO membrane, the water pressure and cartridge status, etc. and become faster or slower.

Moreover, the higher the flux is not the better, because the higher the flux, the price will generally increase accordingly. Sometimes a difference of only 1 second or 2 seconds in water reception time can result in a price difference of several hundred dollars. If the main use is for 3-5 people, a water purifier with a capacity of 1000G is sufficient for the needs. Its water speed can reach 2.68L/min, 3.36 seconds can be filled with a cup of 150ml of water, basically can realize the effect of filtering and drinking, like usual morning family rushed to the same time need to drink water, but also can be very fast out of the water.

Moreover, its RO membrane flux is real. Unlike some water purifiers RO membrane flux may only be a few hundred G, but because of the body plus a water storage tank, the water storage tank flux superimposed on the RO membrane, and publicize their flux breakthrough 1800G or even higher, so that the product will be convenient to sell more expensive.

We must ask the real flux of the RO membrane when shopping, to avoid false flux to pay the bill.

 

3️⃣ Filter cartridge cost: the big head of long-term spending

Filter cartridges are consumables that need to be replaced regularly to ensure the effect of water purification. Currently on the market are basically water purifiers with cartridge replacement reminder function, but due to the preset life is only based on a fixed amount of water purification (such as 4000L), ignoring the differences in water quality (TDS value, impurity concentration, etc.), which may lead to two kinds of problems: in the poor quality of water in the region, the filter cartridge may be prematurely scrapped; and in the good quality of water in the region, the filter cartridge may be “not depleted but forced to scrap” situation, resulting in waste. In areas with good water quality, the cartridge may be “forced to be scrapped before it is used up”, resulting in waste.

For example: if you live in a good water quality areas, raw water TDS <80ppm, even if the cartridge has reached the nominal life, its desalination rate can still be maintained at 92% (90% of the national mandatory standards). At this time, the mandatory replacement of the filter, is the same as the filter can be used directly into the trash. Considering that the price of a single RO cartridge is usually between 500-900 RMB, this kind of waste is actually not friendly to our wallets. Therefore, when choosing a water purifier, in addition to focusing on the basic performance, we should also pay attention to whether it has the function of monitoring and optimizing the use of filter cartridges in order to maximize the utilization of filter cartridges.

4️⃣ Wastewater Ratio: Balancing Water Saving and Cartridge Life

Wastewater ratio is one of the most important indicators of the performance of a water purifier, which refers to the ratio of pure water and wastewater produced during the working process of the water purifier. The higher the ratio, the more water the water purifier saves when making water. For example, the pure waste water ratio of 1000G water purifier is 3.3:1, which means that for every 3.3 cups of pure water produced, only 1 cup of waste water is poured out. This pure wastewater ratio is considered higher, better balance between water saving and cartridge life, water efficiency of up to 77%, than the national level of water efficiency (65%) water savings of about 37%, long-term use can reduce the water bill.

Attention! The main role of wastewater is used to flush the RO membrane surface accumulation of salts and impurities, to prevent clogging and extend the life of the filter.
Wastewater is not “dirty water”, but the concentrated water filtered through the first few stages of the cartridge, the salt content is higher, but turbidity, organic matter and other indicators are better than the original water. If conditions permit, it can be recycled for flushing toilets or mopping floors.

5️⃣ Additional features: chopped on demand

The following features, you can choose according to their own needs:

✅ Intelligent digital display: real-time view of the TDS value, filter life and other information;

✅ Dual water: a machine for two purposes, can be freely converted between the purified water/pure water mode;

✅ Zero stale water: the first glass of water can be drunk directly, say goodbye to the “anxiety of overnight water”;

✅0 BPA: mother and baby families give priority to BPA-qualified products;

✅ Silent design: operating noise ≤ 50dB, suitable for night use or open kitchen;

✅ Heating function: direct hot water, but the price will be more expensive, tea or milk high-frequency families can choose.

If you are worried about the water quality at home, you may want to consider installing a water purifier!