A modern refrigerator is no longer simple a cabinet for storing food, turning into a complex system that provides not only cold, but also the purity of the water consumed. If you are thinking about how to choose a filter, then you care about the health of your family and the durability of expensive equipment. The quality of tap water often leaves much to be desired, and the use of built-in cleaning systems becomes a necessity, not a whim.
An incorrectly selected or expired cartridge can become a source of bacterial growth, which completely eliminates the benefit of installing a cleaning system. Water with an unpleasant odor or taste of chlorine can spoil the taste of any drink, from simple tea to gourmet coffee prepared in a coffee machine built into the refrigerator. That is why understanding the principles of operation and classification of filter elements is critical for every owner of smart equipment.
In this article we will analyze in detail all the nuances of choosing, installing and maintaining water treatment systems. You will learn the difference between carbon blocks and reverse osmosis systems, how often replacement is required, and what mistakes users most often make when purchasing consumables. A competent approach will save your budget and provide your home with crystal clear water.
Why do you need water purification in the refrigerator
The main task of any filtration system is to remove mechanical impurities, chlorine, heavy metals and organic compounds. Water passing through activated carbon or membranes gets rid of extraneous odors that can be transferred to ice and drinks. This is especially true for houses with plumbing, where the risk of rust getting into the pipeline is much higher.
In addition, purified water prevents the formation of scale in the heating elements of dispensers and ice makers. Scaling is the main enemy of household appliances, leading to overheating of heating elements. and failure of expensive components. Regular use of high-quality cartridges extends the life of the refrigerator and maintains its energy efficiency at a high level.
It is worth noting that the degree of cleaning directly affects the taste of products. Ice cubes frozen in clean water do not have any cloudiness or foreign taste, which is especially important for cocktails and baby food. Ignoring the need for filtration can result in even the freshest products having an unpleasant taste.
⚠️ Warning: Using unfiltered tap water in premium ice makers may result in denial of warranty service if the failure is due to a clogged water supply.
Basic types of filter cartridges
The market offers many solutions, but they are all divided into several key categories based on their operating principle. Understanding the difference between them will help answer the question how to choose a filter exactly for your model and water quality in the region. The most common option is flow-through carbon filters, which effectively remove chlorine and organic matter.
More complex systems use reverse osmosis or ultrafiltration technology, retaining even viruses and hardness salts. Such cartridges usually have a higher cost, but provide the maximum degree of cleaning. The choice depends on the initial water quality and the requirements of your refrigerator manufacturer for pressure in the system.
There are also combined models that combine several stages of cleaning in one housing. They can contain ion exchange resins to soften the water, which is critical in areas with very hard water. Below is a comparative table of the main types of cartridges.
| Filter type | Basic material | Resource (liters) | Degree of purification |
|---|---|---|---|
| Coal (Carbon) | Activated carbon | 300 - 500 | Chlorine, smell, taste |
| Combined | Coal + resin | 400 - 600 | Chlorine, scale, taste |
| Ultrafilter | Hollow fiber membrane | 1000 - 2000 | Bacteria, rust |
| Reverse osmosis | RO membrane | 2000 - 4000 | Maximum (99%) |
Is it possible to use a filter that has expired?
No, you absolutely cannot use an expired cartridge. Over time, activated carbon loses its adsorbing properties and itself becomes a favorable environment for the growth of bacteria. In addition, the old filter may begin to release accumulated contaminants back into the water, deteriorating its quality.
Determining compatibility with the refrigerator model
The most important step is finding a compatible article. Refrigerator manufacturers often do not produce filters themselves, but order them from specialized factories, changing only the housing design and logo. Therefore original filter from the refrigerator brand and an analogue from the filter manufacturer may be identical in filling, but different in price.
To find the correct option, you need to Locate the model number of your refrigerator. It is usually located on a sticker inside the camera, on the side wall or on the base. Knowing the exact model, for example LG Side-by-Side or Samsung Family Hub, you can easily find a list of recommended consumables in the instructions or on the official website.
Universal connection standards, such as push-to-connect or threaded connections, are often used. It is important to pay attention to the overall dimensions of the cartridge, since the filter compartment in the refrigerator is limited. A slight discrepancy in height or diameter may make installation impossible or lead to leaks.
There is a common misconception that only original spare parts are suitable. In reality, many well-known filter brands, such as Pentek, Brita or AquaPure, produce compatible analogues that are NSF certified. The main thing is to make sure that the analogue has the necessary quality certificates and is suitable for the type of connection.
⚠️ Attention: The technical characteristics of the filter compartments may vary slightly in different batches of refrigerators. Before purchasing a non-original cartridge, always check its dimensions with your current filter.
Selection criteria: performance and resource
When solving a problem, how to choose a filteryou cannot ignore its declared resource. Productivity is measured in liters or gallons of water that the cartridge is able to clean before losing its properties. For a large family of 4-5 people that actively uses a dispenser, saving on the filter resource does not make sense.
Filtration speed is another important parameter. Some dense charcoal blocks may drain water too slowly, resulting in a weak stream from the dispenser and taking a long time to fill the glass. This is often found in cheap analogues with high compaction density of coal.
It is also worth considering the cost of ownership. A cheap cartridge that needs to be changed every month will cost more than a high-quality filter with a resource of six months. Make simple mathematical calculations: divide the price of the filter by the number of months of its service to get the real cost of ownership.
- 🧊 Consumption volume: If you drink a lot of water, choose cartridges with a resource of 1500 liters or more.
- 🔧 Connection type: Make sure that the new filter is of the same type connector (bayonet, thread, push-fit).
- 📉 Water hardness: For hard water, cartridges with ion-exchange resin are required to protect against scale.
☑️ Check before purchase
Instructions for replacing and resetting the indicator
The replacement process usually does not require special tools and takes no more than 5 minutes. However, it is important to follow the sequence of actions to avoid air locks and leaks. First, you need to shut off the water supply to the refrigerator, if such a possibility is provided by the design.
Then you should turn the old cartridge counterclockwise (usually 90 degrees) until it clicks and remove it. Some models require you to press the unlock button. The new filter needs to be prepared: remove the protective caps from the seals and, in some cases, fill with water for better primary filtration.
After installing the new element, it is necessary to flush the system. A few liters of water (usually 5-10 liters) should be passed through the new cartridge to flush out the coal dust and stabilize the flow. Only after this the water will become suitable for drinking.
Resetting the indicator: Menu -> Settings -> Filter Reset -> Hold 3 secDon't forget to reset the filter replacement indicator on the control panel. In most models, this is done by long pressing the button Filter Reset or through the settings menu. If this is not done, the refrigerator will continue to signal the need for replacement, even if the cartridge is new.
Common mistakes when choosing and using
One of the most A common mistake is ignoring replacement dates. Many users change the filter only when the water begins to smell noticeably worse or flows in a thin stream. By this point, the filter has not purified the water for a long time, but only pollutes it with accumulated substances.
Another mistake is an attempt to rinse and reuse a disposable cartridge. Carbon filters are not intended for regeneration at home. Washing with water can remove only part of the mechanical contaminants, but will not restore the chemical activity of coal or resin.
Also, users often buy filters “for growth” or for future use, without taking into account storage conditions. Cartridges have their own expiration date indicated on the packaging. Storing in a hot room or in direct sunlight can damage the filter material even before installation.
- 🚫 Ignoring the indicator: Do not wait for the light to blink, keep a replacement calendar.
- 💧 Lack of washing: The first water from a new filter is often black - this is normal, but drinking it cannot be done.
- 📦 Incorrect storage: Store spare filters in a cool, dry place in the original packaging.
⚠️ Attention: If after replacing the filter the indicator does not go out or continues blinking, the cartridge may not be fully installed or the shipping plugs have not been removed. Check the planting density.
The influence of water quality on health and equipment
Water quality directly correlates with the health of household members. Regular consumption of water with high levels of chlorine or heavy metals can negatively affect the condition of the skin, hair and gastrointestinal tract. Children and the elderly are especially sensitive to water quality.
For the equipment itself, high-quality water is the key to uninterrupted operation. Mineral deposits (scale) tend to accumulate in the narrow channels of the water supply system. Over time, the lumen of the channels narrows, the pressure drops, and the pump supplying water begins to work with overload, which can lead to its combustion.
In addition, clean water improves the operation of the ice maker. Ice from purified water is clear, hard and odorless. Dirty ice can clump together, forming solid blocks that are difficult to remove, or have a cloudy, unattractive appearance.
Why may water foam after replacing the filter?
Foam in a glass of water immediately after replacing the filter is normal. It is caused by air bubbles that entered the system during installation. The air will be completely released after 1-2 days of active use.
How often should you change the filter in the refrigerator?
The standard replacement interval is 6 months or after filtering 300-500 liters of water (depending on the model). However, if the water in your region is very dirty or the water consumption in the family is high, you should change the cartridge more often - once every 3-4 months. The indicator on the refrigerator panel is usually set to a standard timer of 6 months.
Is it possible to use a refrigerator without a filter?
Technically, most refrigerators can work without a filter if you install a special plug (bypass plug), which is included in the kit. However, drinking tap water without cleaning it through a dispenser is not recommended due to the risk of contamination of the internal tubes of the refrigerator with sediment and bacteria.
Why does water after the filter have a strange taste?
A new carbon filter may give a slight aftertaste in the first liters of water. This is fine. If the taste persists after rinsing 10 liters, the cartridge may be defective, incorrectly installed, or expired. Also, the taste may depend on the original composition of the water.
What is the difference between the original filter and the analogue?
Original filters are guaranteed to fit in size and have predictable quality. Analogs may be cheaper, but their resource and degree of purification may differ. Good replacements are NSF certified and are often manufactured in the same factories as the originals, but under a different brand.
What to do if the filter indicator does not reset?
Try holding the reset button longer (up to 10 seconds). Make sure the refrigerator is not in demo mode. If all else fails, try unplugging the refrigerator for 5 minutes and then repeating the reset procedure. In rare cases, flashing of the control module is required.