F4 Countertop RO Water Mineralization System | Natural Mineral Alkaline Water（PH 9.5）| Instant Hot Water Dispenser (5 Temps)|99.9% Lead Removal|Lead-Free & UV Self-Cleaning

Our mineral water purifier is equipped with 3 filter cartridges and adopts 10-stage deep filtration + mineralization technology. It can not only efficiently purify water but also retain beneficial minerals, upgrading ordinary tap water into healthy mineral-rich water. The specific process is as follows:

First, purification (removal of harmful substances):- The pre-filter intercepts large particulate impurities such as sediment and rust.
- The aerospace-grade RO reverse osmosis filter removes tiny pollutants, such as heavy metals, bacteria, and viruses, with an efficient removal rate of 99.99% for harmful substances.

Then, mineralization (supplementation of beneficial minerals):- Through the natural mineralization filter, it supplements essential minerals for the human body such as calcium, magnesium, and strontium.
- The precision filter screen further optimizes water quality and enhances taste.

In addition, it is also equipped with UV ultraviolet sterilization,which completely inactivates microorganisms and eliminates secondary pollution.

The finally filtered water is pure and safe, while being rich in minerals with a sweet taste.

Purified water is too clean, but it lacks beneficial mineral elements.However, water purification products on the market often overlook the natural properties of water, making it difficult to meet people's higher pursuit of healthy drinking water.
NatureFlow is aware of the importance of a cup of pure, mineral rich water for a healthy lifestyle in the fast-paced modern world. With our efforts,NatureFlow invented mineral rejuvenation technology using a pure physical process to transform tap water into premium mineral water and obtained six invention patents.NatureFlow Water Mineralization System can effectively remove 99.99% of harmful substances while retaining beneficial elements such as potassium, calcium, sodium, magnesium, and strontium with a pH value around 9. Allow you to enjoy high-quality water that can rival the quality of Alpine snow capped spring water, with a sweet smooth taste.

Tips:When using the new machine, it is recommended to use it continuously for more than a week for better taste and effect.

Understanding PPM Levels in Mineralized Water:

• Purified water (e.g., RO water) has a very low TDS because it lacks minerals.
• NatureFlow’s water mineralization system removes 99% of harmful substances such as bacteria, viruses, and heavy metals while retaining beneficial minerals (e.g., potassium, calcium, sodium, magnesium, and strontium).
• Mineralized water naturally has a higher TDS due to the added minerals, similar to premium bottled mineral water.

Water Type Typical TDS Range (PPM) are as follows:

• Purified Water (RO) :0-20
• Premium Bottled Mineral Water (including Evian, etc.) :80-150
• Nature Flow Mineralized Water: 30-150

NatureFlow's advanced mineral rejuvenation technology ensures a balanced and healthy mineral composition after RO purification, resulting in a higher TDS than pure RO water. This is expected, safe for drinking, and aligns with high-quality mineral water standards.

To help you quickly learn how to use and enjoy healthy water, we have prepared a detailed operation guide for you.

【New Machine Usage Guide】

When a new machine or a new filter cartridge is used for the first time, it will automatically start the cleaning procedure. It is recommended to wait until the cleaning is completed before drinking.
After powered on, please let it stand for at least 3 hours to ensure stable cooling performance (only applicable to the Y6 version).

Specific operation steps:

1. Fill the tap water tank to the MAX line. Install the tap water tank, and the machine will automatically enter the cleaning protocol after a beeping sound.
2. When the "Room Temp" button is steadily lit, and the cleaning progress shows 45% (approximately 10 minutes), empty the water in the Purified Water Jug using one of two methods:
(Lit button: "Room Temperature" Button for Y6 version; "Water Outlet Button" for F4 version)
-Method ①: Pour out the water in the Purified Water Jug and reinstall it. After a beeping sound, no further action is needed.
-Method ②: Place a 3.4 quart basin/bucket under the water outlet. Press the "Room Temp" button to empty the water in the Purified Water Jug. The machine will automatically continue the cleaning protocol.
3. When the "Please Replace Water" indicator light flashes, add tap water to the tank up to the MAX line. Note: to ensure a better drinking experience, it is recommended to empty the remaining water and refill the tap water tank. The cleaning protocol will continue.
4. When the cleaning progress shows 100% and all button lights are on, the cleaning process is completed (approximately 20 minutes).

【Common Button Functions】

1. One-touch water outlet—Y6

40°F (cold water)/room temperature/180°F (coffee)/200°F (boiling water). Click the corresponding water temperature button to get water directly.
You can also customize the one-touch water outlet. Select the commonly used water volume and temperature, long-press the "Favorite" button for 3 seconds, and the indicator light will flash to indicate successful setting (next time, directly click the "Favorite" button to get water according to the preset settings).

2. Temperature and water volume adjustment

4 levels of water volume are adjustable: 8oz/12oz/16oz/--- (--- means unlimited; press the water outlet button during water outflow to stop it).
- Y6 version: Click the "Temperature Adjustment" button, which supports 11 levels of precise temperature control (Cold, Room Temp, 110°F, 120°F, 130°F, 150°F, 170°F, 180°F, 190°F, 200°F, 210°F).
- F4 version: Click the "Temperature Adjustment Button", which supports 5 levels of precise temperature control (77°F, 120°F, 150°F, 180°F, 210°F).

3. Other buttons

- Water Outlet Button: Click to get water at the currently set temperature and volume.
- Cleaning Button: Click to start the internal waterway cleaning procedure.
- Child Lock Button
- Orange light on: Lock mode (water outflow is prohibited when the water temperature is ≥130°F).
- Click the "Child Lock Button" to unlock temporarily, and it will automatically relock after 5 seconds.
- White light on: Unlock mode, allowing water collection at all temperature levels.
- Long-press the "Child Lock Button" for 3 seconds to permanently switch the child lock on/off.

【Indicator Light Status】

- "Cleaning Light" on: Automatic cleaning is in progress.
- "Refrigeration Light" on: The refrigeration system is running (applicable to Y6 version).
- "UV Sterilization Light" on: UV sterilization is in operation.
- "Filtration Indicator Light" on: Water filtration is in progress.
- "Cleaning Progress": Displays the real-time cleaning progress (applicable to Y6 version).
- "TDS": Shows the current TDS of water quality (applicable to Y6 version).
- "Water Change Light" flashing rapidly: The tap water tank is short of water; please pour out the remaining water and refill it.
- "Water Change Light" flashing slowly: The mineral water pot is not installed correctly; please reinstall it.

NatureFlow Water Mineralization System is equipped with a filter cartridge reminder function. When the filter cartridge indicator light on the display screen turns red, it indicates that your filter cartridge needs to be replaced.