Question 1

什么是TDS？

Accepted Answer

总溶解固体（简称TDS），也称为溶解固体的总量，以毫克/升（mg/L）为单位进行测量。它表示1升水中含有多少毫克的溶解固体。
TDS值越高，水中溶解的物质就越多。
正常情况下，电导率和盐含量越高，TDS值越高。
在极端情况下，纯水不导电，因此其 TDS 为 0。
根据国家规定，总溶解固体（TDS）只是反映水质的指标之一。对于生活用水，TDS 必须≤1000 mg/L。

Question 2

如果纯净水的TDS值持续保持在30，会有问题吗？

Accepted Answer

In the initial use stage, the embedded intelligent water quality monitoring module needs to be fully soaked by the water source. It’s normal for the TDS value to be higher or the monitoring frequency to be lower at this stage—you can use it with confidence.
The WHO’s drinking water TDS standard is less than 50; the EU standard is less than 70; the US standard is less than 50.
Biyunquan purified water has a stricter drinking water standard, ranging from 0 to 30. TDS values within 50 are safe for drinking.
Suggestion: Rinse it several more times and observe for 5-7 days. If the TDS of the purified water still stays at 30, contact us and we will handle it promptly for you.

Question 3

Why is there black powder in the water tank?

Accepted Answer

When some users run water through a new device for the first time, black carbon powder may appear in the raw water tank. This is a normal situation, so you don’t need to worry.
The activated carbon filter is made by sintering carbon powder with food-grade binders. It does not participate in human metabolism, so it is non-toxic and harmless to the human body. Its main function in the water purifier filter is to adsorb residual chlorine, pigments, odors, colloids, etc.
When the new filter is rinsed with water for the first time after being opened, the activated carbon in the first-stage filter has not been fully activated by water, so some fine activated carbon powder will be discharged into the raw water tank. At this time, you only need to rinse the new device 3-5 times.
If black carbon powder appears in the purified water tank, it is caused by the activated carbon in the third-stage filter. You can solve the problem by simply rinsing it with tap water, wiping it clean with a clean cloth, and then draining and rinsing it several times.

Question 4

生产过程中，原水箱中的水会变得浑浊。

Accepted Answer

Cause of turbidity: The so-called "powder" is not actual powder, but dense bubbles formed by compressed air in the water. This is a normal physical phenomenon
Technical principle of the device:It adopts reverse osmosis technology with a filtration precision of 0.1 nanometers;The diameter of water molecules is 0.4 nanometers, which cannot pass through the RO membrane under natural water pressure. A built-in booster pump is needed to pressurize the tap water, allowing water molecules to squeeze through the RO membrane, while all other impurities remain on the other side of the RO membrane;
Logic of bubble formation: The water pump will highly compress the air in the water during operation, thus forming dense bubbles
Conclusion: This phenomenon does not affect water quality, and the water is safe to drink

Question 5

Why is there a layer of oil stain floating in the water?

Accepted Answer

现象：部分用户在使用新设备前未先冲洗，取水后水面或进出水阀处可能会出现油状物质，且饮水时会有异味。
原因：在新滤芯的接口处涂抹了食品级润滑脂。这种润滑脂用于保持滤芯的密封状态，方便更换滤芯，且无毒无害。
解决方法：将新设备冲洗几次即可解决此问题。

Question 6

Why is there "dirty stuff" (bubbles) in the hot water?

Accepted Answer

自然界的解释：这不是脏东西，而是溶解在热水中的空气。
原理：空气在水中的溶解度随温度升高而增大；热水静置一段时间后冷却，空气在水中的溶解度降低，因此空气从水中分离出来形成气泡。
结论：这是一种正常的物理现象，不会影响水质，水可以安全饮用。

Question 7

Is the TDS of purified water higher than that of raw water?

Accepted Answer

Phenomenon explanation: When the TDS value of raw water is low (too pure), after treatment by the water purifier, the TDS of purified water may be higher (even exceeding the TDS of raw water)
Cause: The raw water is too pure, so very little wastewater is produced after treatment by the No.2 RO reverse osmosis filter. This results in insufficient flushing of the purified water probe, which may lead to a slightly higher TDS of purified water
Impact: This situation does not affect the normal operation of the device
Verification suggestion: If you have doubts about this, you can use tap water with higher TDS for a week. You will observe that the TDS of raw water is higher than that of purified water, which proves that the device is fault-free and can be used normally

Question 8

为什么我自行测量的TDS值与屏幕上显示的值不同？

Accepted Answer

General causes of discrepancy:Water container: The cup used to hold water contains a small amount of impurities, and the air that the water comes into contact with during dispensing also carries some impurities, leading to deviations in the self-measured dataTesting tool: TDS test pens have instability in detection, and the data from different TDS test pens may not be the same; it is recommended to use professional and formal TDS detection devices
National standard for drinking pure water: TDS≤50
Causes of discrepancy for Biyunquan models with mineralization function:The pure water after mineralization contains various mineral ions, which will make the self-measured TDS value higherThe device’s purified water TDS detector is located between the second and third filters, and it detects the TDS of pure water that has not been mineralized, so there is a difference between this value and the self-measured (post-mineralization) value

Question 9

Why does the device have a plastic smell?

Accepted Answer

原因：净水器主体包含许多塑料部件。新设备从生产、包装到运输全程密封，因此部分设备可能带有塑料气味。但设备中与水接触的塑料部件均无毒无害，因此可以安全使用。
类似地解释：市面上销售的塑料制品（例如婴儿奶瓶、运动水杯）在刚开始使用时通常也会散发出一定的塑料气味。
解决方法建议：新设备使用前，请将其置于通风阴凉处晾晒12-24小时，然后按照新设备操作要求进行清洁，即可正常使用。

Question 10

如果冲洗新设备后仍然有塑料味，我该怎么办？

Accepted Answer

Forbidden operations:Due to the special material of the device, do not pour hot water into the raw water tankDo not use fresh lemons or other fruits to remove the smell of the new device: Fruits contain organic substances such as fructose. If they are not rinsed thoroughly, it is easy to cause bacterial growth, mildew, and odor
Recommended deodorization solution:Material: Use the yellow packaged food-grade citric acid that comes with the device (its composition is similar to vitamin C, non-toxic and harmless)Operation steps:Dissolve the citric acid with warm water (ensure no crystal particles remain), then cool it to room temperatureIdentify the source of the odor (smell the raw water tank/purified water tank), pour the solution into the tank with a stronger odor, and perform drainage or water dispensing operations after soakingIf the dispensed water has an odor (may be the smell of silicone pipes for cold and hot water): Rinse the water dispensing pipes with the citric acid solution; the cold and hot water pipes are designed separately, so if the hot water has an odor, rinse the hot water pipes specifically
Precautions:The water tank soaked with citric acid needs to be rinsed multiple times to ensure no citric acid residue, so as to avoid bacterial growth in the pipes

Question 11

TDS increases after filter replacement

Accepted Answer

TDS的定位：TDS不能直接反映水质，它仅作为水质的参考标准。
更换滤芯后TDS值升高的原因：新滤芯接口处涂抹了食品级润滑脂（该润滑脂无毒无害，对人体无害，其作用是保持滤芯的密封状态，方便更换滤芯）。活性炭滤芯首次使用也会导致TDS值升高。
建议：更换滤芯后，请将设备冲洗三次以上。

Question 12

Why can’t the water be heated to 100°C?

Accepted Answer

Reasons for temperature control:Device design: To avoid secondary pollution of purified water, the device adopts a closed structure; when water is heated to 100°C, it will boil and produce steam, causing excessive pressure inside the heating tube, which may burst the internal parts of the device.Energy consumption and efficiency: Although the heating tube is equipped with an automatic high-pressure discharge valve to avoid safety risks, the steam discharge followed by re-filling and heating will lead to slow heating, which is time-consuming and energy-intensive. Therefore, the heating temperature of water purifiers is usually controlled between 90°C and 100°C to ensure safe operation.
Basis for water quality assurance:Limitation of conventional methods: Even if ordinary tap water is boiled to 100°C, it is difficult to eliminate harmful substances such as bacteria and heavy metals in the water.Filtration capability of the device: This device is equipped with a high-precision reverse osmosis RO membrane and 4-stage deep filtration technology, which can effectively filter out 99.99% of harmful substances such as sediment, rust, spores, cysts, bacteria, heavy metals, residual chlorine, and inorganic salts. The filtered water meets the national drinking water standard and can be drunk directly even without boiling.

Question 13

Why does the outlet water temperature fluctuate repeatedly?

Accepted Answer

现象解释：当您不调节温度时，屏幕会显示实时室温，该温度会受室内温度的影响而变化；由于设备的温度探头较为灵敏，当室内温度处于临界值（例如，在 27°C 和 28°C 之间）时，温度显示可能会在 27°C 和 28°C 之间反复切换。
结论：这是正常现象，不会影响日常使用。

Question 14

What should I do if the temperature is inaccurate?

Accepted Answer

Normal causes of temperature deviation:The device detects the immediate temperature after the heating system. During the process of purified water flowing from the outlet to the cup, the water temperature will change with the ambient temperature (similarly, the water boiled in a kettle is not 100°C when poured into a cup)The device’s temperature control component will automatically adjust according to the ambient temperature, to prevent the outlet water temperature from being too high in summer or too low in winter
Manual calibration steps for large temperature deviations:Continuously dispense 98°C water for 1-2 minutesContinuously dispense 85°C water for 1-2 minutesContinuously dispense hot water until switching to 45°C water, and keep dispensing for 1-2 minutesThe above operations can help the device adapt to the current ambient temperature

Question 15

如果定量配药不准确，我该怎么办？

Accepted Answer

定量出水误差的原因：水路设计因素：由于机器水路结构设计的原因，定量出水功能可能存在±10mL的出水量误差，这是由于水路管道中残留少量水造成的。这是正常现象。热水加热因素：热水定量误差来源于加热温度的差异。加热过程中，水流速度减慢，水流变稀，导致定量出水量出现偏差。
建议：建议使用带有精确刻度的量杯或水瓶进行倒水测量。

Question 16

为什么热水的流速比常温水的流速低？

Accepted Answer

Cause (based on the specific heat capacity formula Q=cm△t):The higher the required temperature, the larger the temperature difference between the raw water and the target temperature, and the more energy is needed;The maximum power of the device is 2200W. To heat up quickly, the water flow rate is reduced to reach the specified temperature. The higher the temperature, the lower the corresponding flow rate. This phenomenon conforms to the physical law of conservation of energy and is a normal situation.
Solution to improve hot water flow rate:You can purchase flagship models (such as N9/S7/S9) equipped with the patented RH servo instant heating technology;This technology integrates three instant heating technologies: dual-channel heating, intelligent pre-heating, and intelligent temperature sensing. Compared with traditional instant heating technology, it has higher heating efficiency, more precise and stable temperature control, and can provide a larger hot water flow rate in the same period.

Question 17

Why does the device produce wastewater?

Accepted Answer

Nature and function of the "wastewater":It is not "wastewater" but concentrated water generated during filtration. It is the water used to flush impurities from the RO membrane in RO reverse osmosis models, aiming to maintain the normal use and service life of the filter.
Explanation of the purified water to wastewater ratio:The device’s 3:1 purified water to wastewater ratio is a relatively low ratio on the premise of protecting the RO membrane’s service life; a lower wastewater ratio is not necessarily better. Products with lower filtration precision (such as the M3 bacteria-filtering water dispenser using ultrafiltration technology) do not produce wastewater.
Value of high-precision filtration and secondary use of the concentrated water:High-precision filtration models can provide better drinking water protection, and the cost of the concentrated water is low (at a water price of 2.3 yuan/ton, drinking 2-3 cases of water per day, the annual cost of the concentrated water will not exceed 10 yuan).The concentrated water is cleaner than ordinary tap water (not drinkable), and can be collected for secondary use such as mopping floors and watering plants.

Question 18

Will the wastewater stored in the raw water tank and mixed with raw water affect the water quality?

Accepted Answer

Tank structure and stratification mechanism:Raw water and wastewater share one tank; the raw water inlet is located in the upper layer of the tank, and the wastewater outlet is in the lower layer;Since wastewater has a higher density, it will form a natural stratification with raw water. Combined with the filter flushing technology inside the device, there will be no repeated filtration of wastewater.
Water quality guarantee measures:The device has a built-in purified water tank. The pure water after four-stage filtration is pre-stored in the purified water tank, ensuring the drinking water is safe and pollution-free.
Concentration reminder and water change operation:When the concentration of water in the raw water tank reaches the threshold, the device will send a raw water replacement reminder;When changing water, you only need to pour out the wastewater and add fresh raw water, which will not affect the water quality.

Question 19

如何更换原水？

Accepted Answer

Reference for purified water to wastewater ratio:Biyunquan models adopt reverse osmosis technology, with a purified water to wastewater ratio of about 3:1;Taking a 4L water tank as an example, when full, it can produce about 3L of pure water and 1L of wastewater (the actual situation will vary according to local water quality).
Replacement timing: When the red water cup icon appears on the screen to remind you to replace the raw water.
Replacement operation: Pour out the remaining water in the raw water tank and add new water.
Precautions:You don’t need to turn off the power every time you change water; just make sure to pull out the water tank when the booster pump is not working;Do not pull out the water tank when the device is producing water, otherwise it may cause the device to suck in air and malfunction.

Question 20

Does the filter have a shelf life?

Accepted Answer

Shelf life of the filter: The shelf life of the filter is five years.
Storage requirements: Do not open the filter's packaging bag, and store it in a cool place. There is no need to worry about the expiration issue when stocking up.

Question 21

What happens if I don’t replace the filter?

Accepted Answer

不更换滤芯的后果：报警提醒：每次出水过程中，设备会持续发出蜂鸣声报警，滤芯寿命指示灯也会闪烁（提醒您更换滤芯）；设备故障：滤芯可能堵塞，导致无法正常出水；长时间处于这种状态会损坏增压泵；功能和水质问题：活性炭滤芯失效，无法达到吸附和改善口感的效果，甚至可能滋生微生物。
建议：及时更换滤芯。

Question 22

如何更换滤芯？

Accepted Answer

Replacement reminder:The device will continuously emit a beep alarm during each water dispensing process, and the filter life indicator light will flash to remind you to replace the filter;Biyunquan recommendation: Be sure to replace the filter in a timely manner.
Replacement steps:Open the device: Press and slide the top cover of the device forward to open it;Remove the old filter: Hold the handle above the filter, rotate the pointer from "Lock" to "Unlock" position, and gently lift the filter to complete the removal of the old filter;Install the new filter: Align the pointer of the new filter with the "Unlock" mark and insert it into the corresponding slot; Hold the handle above the filter, rotate the pointer from "Unlock" to "Lock" position (confirm that the filter cannot be lifted), and complete the installation of the new filter.
Precautions: After replacing the filter, a reset operation is required. Please refer to the filter replacement reset guide for the corresponding model for specific operations.

Question 23

What should I do if the filter is accidentally reset?

Accepted Answer

Handling of accidental reset of Filter 2:The service life of Filter 2 is 18-24 months;Two remaining bars before reset: corresponding to about 60% of the service life (around 1 year);One remaining bar before reset: corresponding to more than half a year of service life;Judgment of exhausted service life: The TDS value of purified water keeps rising and draining has no improvement. At this time, the filter needs to be replaced, and it is recommended to prepare and purchase it in advance;Reminder method: You can pay attention to the TDS value of purified water through the TDS intelligent display.
Handling of accidental reset of Filter 1/3:If only 1 bar is left before reset, the remaining service life is less than 2 months;It is recommended to purchase the filter in advance;Reminder method: You can pay attention to the TDS value of purified water through the TDS intelligent display.

Question 24

What factors are related to the filter's service life?

Accepted Answer

Dimensions related to the filter's service life (3 in total):Power-on time: Used as the basis for calculating the shelf life. Similar to bread going bad when left standing after opening, the filter may breed microorganisms (moldy, smelly, or excessive microorganisms) even if it is not used for a long time after being exposed to water. Therefore, the power-on time follows the timing logic of food shelf life.Water quality TDS change: The smart chip dynamically calculates the service life based on the TDS value of the raw water. The dirtier the raw water, the shorter the filter's service life.Water intake flux: Refers to the total amount of water taken from the water purifier. The more water taken and the more frequently it is used, the shorter the filter's service life.
Supplementary note:The filter service life indicator is a recommended replacement cycle, not mandatory. However, it is not recommended to replace the filter only after it is completely scrapped; if the filter is completely blocked, it may cause safety hazards such as booster pump overload and pipe rupture.

Question 25

Why is there a hissing sound after water production?

Accepted Answer

声音的性质：这不是嘶嘶声，而是过滤器冲洗的正常声音。
相关程序：设备在产水后将运行约 15 秒的涡流对流冲洗程序（此程序旨在提高过滤器的使用寿命）。
该方法的功能：它可以冲洗掉滤膜表面的离子杂质，从而保证滤芯的使用寿命和饮用水的健康。
执行频率：每次产水后，此程序将自动执行。

Question 26

如何解决设备不产生水（空气滞留）的问题？

Accepted Answer

Cause of no water production: It is most likely an air trapped issue, which is easily caused by plugging or unplugging the filter during water production.
Steps to remove trapped air:Step 1: Disconnect the power supply, open the top cover of the device, and pull out the filter;Step 2: Use tools like chopsticks to poke the hole at the bottom of the filter to loosen and release air (Note: If there is resistance when pressing the chopstick, it means air is trapped. At this time, gas and water may splash from the bottom of the filter. Do not point the bottom of the filter upward at a person's face during operation);Step 3: Repeat Step 2 for the remaining filters. After exhausting air, tighten the filters, wipe the tabletop dry, and close the top cover of the device to use it normally.
Follow-up suggestion: If the device still does not produce water after performing the above operations, please contact the official store customer service.

Question 27

出水口滴水是正常现象吗？应该如何处理？

Accepted Answer

Judgment and handling for different scenarios:Dripping after taking water: If the dripping stops within 1 minute, it is a normal situation;Dripping when not taking water: Observe whether the water dripping in 8 hours can fill the water collection box below. If the box is filled, maintenance is required (replace the check valve or air-water separation box).

Question 28

是什么原因导致机器底部漏水，该如何处理？

Accepted Answer

漏水的可能原因及处理方法：原因 1：使用过程中水溢出，或原水箱水量超过最高水位线。处理方法：首先进行自检，确认是否存在上述情况；原因 2：滤芯松动。处理方法：打开机器顶盖，检查滤芯是否安装到位；逐一取出 3 个滤芯，重新对齐并拧紧；盖上顶盖后，在取水前擦干桌面和机器底部的水渍。

Question 29

Why isn’t the sterilization light turning on?

Accepted Answer

Working mode of the sterilization light (UV light): It adopts an intelligent detection sterilization design and does not stay on continuously.
Method to verify the normal operation of the UV light:Premise: The purified water tank is full;Operation: Turn off the power, wait 30 seconds, then turn the power back on;Judgment: If the UV light turns on at this time, it means it is working normally.

Question 30

What should I do if there is limescale in the raw water tank?

Accepted Answer

除垢剂：柠檬酸（具有健康、环保、高效除垢且无残留的特点）。
除垢步骤：步骤 1：取一杯 65℃ 以上的热水，倒入 5-10 克柠檬酸（根据水垢严重程度调整用量）；步骤 2：等待柠檬酸完全溶解，热水冷却；步骤 3：向原水箱注满自来水，然后倒入溶解好的柠檬酸溶液；步骤 4：等待约 10 分钟后，用干净的棉布擦拭原水箱内壁；步骤 5：倒掉所有柠檬酸溶液，并用自来水冲洗干净残留的柠檬酸溶液。

Question 31

机器为什么会发出噪音？

Accepted Answer

Causes and explanation of the noise:Technical basis: To ensure water safety, the machine uses an RO reverse osmosis membrane; reverse osmosis technology requires squeezing water molecules into a reverse osmosis membrane with a pore size 4 times smaller than the molecule. This cannot be achieved with normal water pressure alone, so a booster pump is needed to assist the water source in passing through the RO membrane (without the booster pump, harmful substances cannot be effectively removed);Nature of the noise: The booster pump will produce a certain sound when operating, which is a normal phenomenon;Working period: The booster pump only works when the water tank is producing water. It does not make noise at other times and will not affect daily life.

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