
Water filter candles are an essential component of any water filtration system, acting as the first line of defence against impurities and playing a crucial role in ensuring clean drinking water. There are several types of water filter candles available, including stainless steel, ceramic, and roller filter candles, each with its unique features and benefits. Understanding how to properly use and maintain these filters is vital for their effectiveness and efficiency. This involves knowing the correct installation process, regular maintenance, and timely replacement when necessary. With proper care, water filter candles can provide crystal clear water, free from contaminants, ensuring safe and enjoyable drinking water for you and your family.
| Characteristics | Values |
|---|---|
| Types | Stainless steel filter candle, ceramic filter candle, rollerfilter candle |
| Use | First line of defense in water filtration system |
| Function | Removes sand, dirt, rust, sediment, bacteria, chemicals, odour, colour, taste, smell, and other large particles |
| Installation | Easy to install, maintain, and replace |
| Service Life | 12-24 months |
| Replacement Indicators | Water filter produces less water, water tastes bad, water is filtered too fast |
| Installation Process | Ensure filtration system is clean and dry, insert candle into designated slot, making sure it fits securely |
| Replacement Process | Turn off water supply, disconnect system from water source, remove housing, unscrew or unclip old candle, clean housing, install new candle, reassemble system, reconnect to water source, flush new candle |
| Manufacturers | Pearl Water Technologies Pvt Ltd, Simpure Life, Aquafresh RO, Rama, RiverSoft, Livpure, Konvio Neer, Pearl Water RO Water Purifier Filter Kit |
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What You'll Learn

Types of RO filter candles
There are several types of RO filter candles available on the market, each with its own unique features and benefits. Here is a detailed overview of some of the most common types of RO filter candles:
Ceramic Filter Candles
Ceramic filter candles are one of the most popular choices for water filtration. They are known for their effectiveness in reducing water pollution and are commonly used in high-quality faucets. The pore size of ceramic filters is typically 0.1 microns, which allows them to filter out bacteria, heat sources, microorganisms, and colloids from the water. Ceramic filter candles also help reduce turbidity, resulting in clearer water. These filters have a service life of 12 to 24 months and are easy to install and replace.
Stainless Steel Filter Candles
Stainless steel filter candles are another common type of RO filter candle. They are known for their durability and corrosion resistance. Stainless steel filters can effectively remove impurities and contaminants from water, ensuring safe and clean drinking water. These filters are also easy to maintain and replace, making them a convenient option for many users.
Rollerfilter Candles
Rollerfilter candles are a type of mechanical filter that uses a rolling or rotating mechanism to separate impurities from water. They are designed to reduce the buildup of sediment and other particles, improving the taste and quality of water. Rollerfilter candles are easy to install and maintain, making them a popular choice for many homeowners.
Polypropylene Filter Candles
Polypropylene filter candles are made from a synthetic polymer material that offers excellent chemical and temperature resistance. These filters are effective in removing sediments, dirt, and other particulate matter from water. They are often used as pre-filters in RO systems to extend the life of the main RO membrane. Polypropylene filters are affordable and readily available, making them a cost-effective option for water filtration.
Sediment Filter Candles
Sediment filter candles are specifically designed to remove suspended particles, such as sand, rust, and other sediments, from water. They are typically used as the first stage of an RO system to prevent these larger particles from reaching and clogging the subsequent filters. Sediment filters play a crucial role in prolonging the lifespan of the entire RO system by acting as a protective barrier.
Each type of RO filter candle has its own advantages and applications, and choosing the right one depends on specific filtration needs and water quality concerns. It is important to select a reputable brand and follow proper maintenance and replacement guidelines to ensure the effectiveness and longevity of your RO filter candle.
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How to install a new RO filter candle
Installing a new RO filter candle can be a straightforward process, but it is important to follow the correct steps to ensure your drinking water is clean and safe. RO filter candles are an essential component of your water filtration system, acting as the first line of defence against impurities in your water supply. Here is a step-by-step guide on how to install a new RO filter candle:
Step 1: Turn off the Water Supply
Start by turning off the water supply to your filtration system. This is a crucial step to prevent any water wastage and to ensure a dry working environment.
Step 2: Disconnect and Remove
Disconnect the filtration system from its water source. Then, carefully remove the housing that contains the old filter candle. You may need to unscrew or unclip the housing to access the filter candle inside.
Step 3: Dispose of the Old Candle
Once the housing is open, remove the old filter candle and dispose of it appropriately. Some candles may need to be unscrewed or detached from the housing. Be sure to handle the old candle with care, as it may contain debris or impurities.
Step 4: Clean and Inspect the Housing
Before installing the new filter candle, clean the housing thoroughly. Check for any damage, such as cracks or leaks, to ensure that the housing is in good condition. A damaged housing may need to be replaced to maintain the effectiveness of your filtration system.
Step 5: Install the New Filter Candle
Take your new RO filter candle and insert it into the housing. Ensure that it fits securely and is correctly aligned. Follow any specific instructions provided by the manufacturer for proper installation.
Step 6: Reassemble and Reconnect
Reassemble the water filtration system, making sure all components are securely connected. Then, reconnect the system to its water source.
Step 7: Flush and Test the System
Flush the new filter candle according to the manufacturer's instructions. This step is important to prepare the candle for optimal performance. Finally, test the filtered water before resuming regular use. Taste and observe the water to ensure it meets your expectations for clarity and purity.
Remember to refer to your specific filtration system's manual for detailed instructions, as some models may have unique requirements. By following these general steps, you can confidently install a new RO filter candle, maintaining the efficiency and effectiveness of your water filtration system.
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How to remove an old RO filter candle
To remove an old RO filter candle, start by turning off the water supply to the filtration system. It is important that the water supply is off before proceeding. Once the water supply is off, disconnect the system from its water source.
Next, carefully remove the housing containing the filter candle. This may require unscrewing or unclipping the housing unit. With the housing removed, you can now access the old filter candle. Unscrew or unclip the old candle from its housing, taking care not to damage the housing unit. Appropriately discard the old candle, following any local disposal guidelines for used filters.
Before installing a new filter, it is important to clean the housing unit and inspect it for any damage. Rinse and dry the housing thoroughly to ensure no debris or residue is left behind. Once cleaned and inspected, you can install a new ceramic filter candle. Ensure that the new candle is securely fitted into the housing unit.
Finally, reassemble the water filtration system and reconnect it to the water source. Flush the new candle according to the manufacturer's instructions, and test the filtered water before resuming regular use. This may involve running several litres of water through the system and testing its quality to ensure the new filter is working correctly.
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Benefits of using a RO filter candle
RO filter candles are an effective way to ensure clean drinking water. Here are some of the benefits of using an RO filter candle:
Removes Contaminants
RO filter candles are designed to remove a wide range of contaminants from water, including microbes, bacteria, viruses, pesticides, arsenic, and other harmful pathogens. This makes it a safe and reliable option for drinking water.
Improves Water Quality
RO filter candles improve the overall quality of water by removing unpleasant odours, tastes, and colours. The filtered water is crystal clear, making it more aesthetically pleasing and desirable for consumption.
Chemical Removal
One of the key advantages of RO filter candles is their ability to remove various chemicals from water. They are effective in eliminating chlorine, iron, magnesium, and other dissolved impurities, ensuring that the water is safe for drinking and free from potential health hazards.
High Water Recovery Rate
RO filter candles are known for their high water recovery rate, typically exceeding 75%. This means that a significant proportion of the input water is recovered as purified water, reducing water wastage.
Easy Installation and Maintenance
RO filter candles are designed for easy installation and replacement. They are user-friendly, and their maintenance is straightforward, making them a convenient choice for ensuring clean drinking water.
RO filter candles offer a reliable and efficient way to improve water quality and safety. By removing contaminants, enhancing water aesthetics, eliminating chemicals, and offering a high water recovery rate, they provide a cost-effective and user-friendly solution for clean drinking water.
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When to change your RO filter candle
The frequency with which you should change your RO filter candle depends on a few factors. The actual lifespan of an RO filter candle is influenced by the quality of the incoming water and the amount of usage. RO filter candles typically need to be replaced every three months, but this may vary depending on the specific circumstances.
For example, the rate at which cartridges are exhausted depends on the level of impurities in the supply tap water and the volume of water produced by the RO/DI system. Therefore, it is recommended to consider changing cartridges based on the number of gallons of water that have passed through them. For instance, a 10-inch 1-micron sediment and 5-micron carbon block cartridge should be replaced every 6 months or 3,000 gallons, whichever comes first. Similarly, RO Buddie sediment and carbon block cartridges are designed to be replaced every 6 months or 1,500 gallons, whichever is reached first.
Additionally, the TFC membrane, which is a crucial component of the RO/DI system, removing 95-98% of impurities, typically has a lifespan of 1-2 years. However, it is sensitive and can be damaged by hot water, freezing temperatures, or drying out. The membrane may also become clogged if the sediment and carbon filters are not changed frequently enough. To test the membrane, measure the TDS (Total Dissolved Solids) of both the tap water entering the system and the product water exiting it. After passing through the membrane, your water should have at least 95% of the impurities removed. For context, if your tap water TDS is 100 ppm, the TDS reading after the membrane should not exceed 5 ppm. Once the TFC membrane allows more than 5% of impurities to pass through, it needs to be replaced.
Furthermore, certain indicators can signal the need to change your water filter candle. For example, if your water filter is producing less water under the same conditions, such as consistent water pressure and temperature, or if the filtered water has an unpleasant taste, it may be time to replace the candle.
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Frequently asked questions
RO filter candles are an essential part of a water filtration system. They are often made from stainless steel, ceramic or carbon, and they remove contaminants such as sediment, rust, chemicals, odours and microorganisms from drinking water.
To open an RO filter candle, first turn off the water supply to the filtration system. Then, disconnect the system from its water source and remove the housing containing the filter candle. The old candle can then be unscrewed or unclipped from its housing and discarded appropriately.
The service life of an RO filter candle is typically between 12 and 24 months. However, you may need to change your filter candle sooner if your water filter is producing less water, the water tastes bad, or the RO system is filtering water too quickly.
To install an RO filter candle, ensure that the filtration system is clean and dry. Insert the new candle into the designated slot, making sure it fits securely. Then, reassemble the water filtration system and reconnect it to the water source. Finally, flush the new candle according to the manufacturer's instructions and test the filtered water before use.











































