Water is essential for life, and it covers about 71% of the Earth’s surface. The ocean holds roughly 1.37 billion cubic kilometers of water, making up more than 97% of the planet’s total water supply. The remaining less than 3% is fresh water, which we rely on for drinking, agriculture, and daily use. As one of the most basic human needs, water plays a vital role in our survival and well-being.
Despite its importance, many people are unaware of how much of the world's fresh water is actually polluted or contaminated. Even after treatment by water companies, some of this water still contains harmful impurities. That’s why many households choose to install water purifiers—so they can ensure the water they drink is clean and safe. However, maintaining these devices can be confusing. Questions like “Can the filter be cleaned?†or “How long does the filter last?†often leave users puzzled. Today, we’ll explore these common concerns and help you understand how to properly maintain your water purifier.
**1. Can the Water Purifier Filter Be Cleaned?**
Yes, but the method depends on the type of filter. For example:
- **Initial Flush:** When you first install your water purifier, it’s important to flush it out to remove any protective liquid. Open the tap, inlet ball valve, and purification faucet, and let the water run for 15 minutes until it’s clear and free of foam. Switching the taps on and off during this process helps create a pulsating flow, improving the cleaning effect.
- **Regular Flushing:** Every time you use the purified water, it also acts as a flush. It’s recommended to open the tap after washing the purified water to remove trapped pollutants. This keeps the system clean and maintains a higher water flow rate.
- **Backwashing:** If the water flow becomes slow, you can perform a backwash by reversing the water flow through the filter. Most modern purifiers have a dedicated backwash button for this purpose.
- **Filter Replacement:** While some filters can be cleaned, others should be replaced regularly. For instance, PP cotton filters typically need to be changed every month, while activated carbon filters may last up to three months. It’s important to replace them on time to prevent secondary contamination from the inner walls or outlet.
- **Cleaning the Front Filter:** If the upper tank fills slowly or the water flows too slowly, the front filter might need cleaning. Remove the cover, take out the non-woven fabric, and rinse it with water. Avoid using detergent on black carbon fiber filters—just rinse them gently.
**2. How Long Can the Water Purifier Filter Be Used?**
The lifespan of each filter varies depending on the type:
- **PP Cotton Filter:** 3–6 months
- **Reverse Osmosis (RO) Membrane:** About 2 years
- **Activated Carbon (T33):** Around 1 year
- **Hollow Fiber Ultrafiltration (UF) Membrane:** Up to 3 years or more
- **Coconut Shell Activated Carbon:** 6–12 months
These are general guidelines, and actual usage may vary based on water quality and frequency of use.
**3. How to Replace the Water Purifier Filter?**
Replacing a filter is a simple process:
1. Use a wrench to loosen the filter bottle, while holding the filter cap with your other hand to prevent it from loosening.
2. Remove the old filter and insert a new PP cotton filter. Make sure it’s from a certified brand.
3. Check the internal white plastic washer and external black washer. If they’re loose, press them firmly into place.
4. Observe the color of the PP cotton through the transparent front panel. If it looks dark or dirty, it’s time to replace it.
5. Before replacing, close the main water valve (or the home’s total water valve if there’s no three-way ball valve), and open the faucet to drain any remaining water.
6. Fill the filter bottle halfway with tap water, reinsert it into the cap, and tighten securely.
Understanding how to maintain and replace your water purifier is crucial for ensuring clean, safe drinking water. While some may think it’s unnecessary, the reality is that even tap water can become contaminated during transport through aging pipes. A water purifier helps remove harmful substances that are invisible to the naked eye, protecting your health in the long run. So, investing in a good water purifier is not just a convenience—it’s a smart choice for your family’s well-being.
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