Water covers 71% of the Earth's surface, with a total volume of approximately 1.37 billion cubic kilometers, making up more than 97% of the planet’s water. The remaining less than 3% is fresh water, which is essential for human survival and daily life. Water is one of the most fundamental needs for living, and its importance cannot be overstated.
However, a significant portion of this limited fresh water is being polluted by human activities. Even after treatment by water companies, it may still contain harmful substances that are not visible to the naked eye. As a result, many households choose to install water purifiers to ensure the safety and quality of their drinking water. But how do these filters work? Can they be cleaned? How long do they last? And when should they be replaced? These are common questions that often confuse users.
**1. Can the Water Purifier Filter Be Cleaned?**
- **Initial Flushing:** When you first install a new water purifier, it's important to flush it to remove any protective liquid or residue. Open the tap, the inlet ball valve, and the purified water faucet, and let the water run for about 15 minutes until it runs clear and free of foam. During this time, alternate between turning the tap off and on (off for 3 seconds, on for 10 seconds) to create a pulsating flow that enhances the cleaning effect. Afterward, close the waste water faucet and wait five minutes before using the purified water.
- **Regular Flushing:** Daily use of the purified water faucet helps maintain the system. It’s recommended to flush the unit after each use to remove trapped impurities, ensuring better water flow and extending the filter’s lifespan.
- **Backwashing:** If the water flow becomes slow, consider backwashing the unit. Most modern purifiers have a backwash button that reverses the water flow to clean the filter elements.
- **Filter Replacement:** Some purifiers only require replacing the filter element, but it’s important to note that the inner walls and outlet areas can still become contaminated over time. Different types of filters have different replacement schedules—PP cotton filters usually need to be changed every month, while activated carbon filters may last three months.
- **Cleaning the Front Filter:** If the upper tank fills up slowly, it might be time to clean the front filter. Simply open the cover, remove the white non-woven fabric, and rinse it under running water. Avoid washing black carbon fiber components; just rinse them gently.
**2. How Long Can the Water Purifier Filter Be Used?**
- PP cotton filter: 3–6 months
- Reverse osmosis membrane (RO): About 2 years
- Activated carbon (T33): Around 1 year
- Hollow fiber ultrafiltration membrane (UF): 3 years or more
- Coconut shell activated carbon: 6 months to 1 year
**3. How to Replace the Water Purifier Filter?**
- Use a wrench to unscrew the filter bottle clockwise. Hold the filter cap with your other hand to prevent it from loosening during the process. Remove the old filter and replace it with a new PP cotton filter. Make sure the new filter is from a reputable brand and has a certification stamp.
- Check the internal and external washers inside the filter cap. If they are loose, press them firmly into place by hand.
- Inspect the PP cotton through the transparent front panel. If it appears dark or dirty, it’s time for a replacement. Don’t skip this step just to save money—your health matters.
- Always turn off the main water valve before starting the replacement. Open the faucet to drain any remaining water in the system.
- Fill half of the filter bottle with tap water, reinsert it into the cap, and tighten securely.
Understanding how to maintain and replace your water purifier filter is crucial for ensuring the purity of your drinking water. A small filter may seem insignificant, but it plays a major role in protecting your health.
Many people might think that a water purifier isn’t necessary, especially if their tap water looks clean. However, water from the municipal supply can become contaminated during its journey through old or damaged pipelines. These pollutants are often invisible but can be harmful. A water purifier acts as a final barrier, removing dangerous substances that could otherwise affect your well-being. So, investing in a water purifier is not just a convenience—it’s a smart and healthy choice.
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