How To Change A Culligan Water Softener Filter?

Culligan water softeners are a great way to improve the quality of your home’s water. They help reduce the hardness and sediment in your water, making it safer and more pleasant. Water softeners also help prolong the life of your appliances, pipes, and fixtures by reducing scale buildup. As such, regularly changing its filter is essential to keep your Culligan water softener in good working order.

Changing the filter in your Culligan water softener is essential for optimal performance. The filter helps capture sediment and other particles that can build up inside the unit, leading to decreased efficiency and effectiveness over time. It also helps keep the brine solution clean and free of debris, ensuring that it can do its job to soften your water effectively.

What Is A Water Softener Filter?

What Is A Water Softener Filter
A Water Softener Filter

A water softener filter is a device that removes minerals and other particles from hard water. This helps to reduce the amount of soap scum and limescale buildup that can occur over time. Water softeners are especially beneficial for households with hard water, as they can help extend the life of appliances such as laundry machines, dishwashers, and other water-based equipment. Additionally, soft water can make it easier to clean dishes and clothing and increase the effectiveness of soap products. Installing a water softener filter is essential to keeping your plumbing system running smoothly.

Tools And Materials Required

  • A bucket or other container to catch water
    A bucket or other container to catch water
    A bucket or other container
  • A Phillips head screwdriver
    A Phillips head screwdriver
    A Phillips head screwdriver
  • Replacement filter
    Replacement filter
    Replacement filter

How To Change A Culligan Water Softener Filter?

The Culligan water softener filter is designed to reduce the amount of calcium and magnesium in your home’s water supply, which can cause scale buildup. Changing the Culligan water softener filter regularly will ensure you get clean and pure water from your system. Here’s how to do it:

Start by turning off
Turning off water supply

Step 1: Start by turning off the power to the softener and shut off the water supply.

Unscrew the filter
Unscrew the filter

Step 2: Unscrew the filter housing, then remove the old filter cartridge.

Insert a new filter cartridge
Insert a new filter cartridge

Step 3: Insert a new filter cartridge into the filter housing, ensuring it is properly seated and sealed.

Step 4:  Securely fasten the filter housing and turn the water supply back on.

Step 5:  Turn the power to your softener back on.

Maintaining Culligan Water Softener

Maintaining Culligan Water Softener
Culligan Water Softener
  • Be sure to check the filter regularly for signs of damage or blockage. Replace it as soon as you notice any issues.
  • Make sure to periodically check for scale buildup on the filter that could reduce its effectiveness.
  • Regularly inspect the filter housing for signs of corrosion or damage and replace it if necessary.
  • Clean the filter thoroughly to remove all impurities, which will help prolong its life and ensure it is working optimally.
  • Changing your Culligan Water Softener Filter every six months to three years is recommended, depending on the type of water in your area.
  • Be sure to use the appropriate replacement filter for your Culligan Water Softener, as incompatible ones can cause problems with the system. After replacing the filter, reconnect all power and water connections correctly and test the unit for any issues.

Benefits Of Changing A Culligan Water Softener Filter

  • Health benefits of clean water: By changing your water softener filter, you will improve the quality of your home’s water. This can help reduce your risk of developing illnesses caused by bacteria or other contaminants in the water supply and improve taste and smell.
  • Environmental benefits: Besides improving the health of those who consume it, switching out a water softener filter can benefit the environment. This is because it reduces the amount of pollutants entering our water supply.
  • Financial benefits: By changing your Culligan water softener filter, you could save money in the long run by reducing energy costs and preventing costly repairs or replacements due to clogged filters. As a bonus, a water softener can help to extend the life of your appliances that use water and may even improve their performance.

When To Change Your Culligan Water Softener Filter?

Changing your Culligan water softener filter every three months or when you notice a decrease in the water pressure is recommended. To maximize the efficiency of your Culligan system, it is essential to keep up with regular filter changes. If your current Culligan filter has been in place for over a year, then it is essential to change it.


Can I clean my water softener filter instead of changing it?

No, it would be best not to attempt to clean your water softener filter. Water softener filters are designed to be replaced when worn out or clogged.

Can I replace my water softener filter, or should I call a professional?

Can I replace my water softener filter, or should I call a professional
Replace my water softener filter

It is possible to replace a Culligan water softener filter yourself, although calling a professional can sometimes be beneficial. Depending on the model of your water softener, you may need specific tools or special equipment to complete the task correctly. Additionally, if you are unfamiliar with replacing a filter, a professional can guide you through the steps and ensure everything is done correctly.

How much does it cost to replace a Culligan water softener filter?

The cost of a Culligan water softener filter replacement depends on the type and size of the filter you have. Generally, a 10-inch standard carbon filter will range from $50-$70 to replace; a 20-inch high-flow carbon filter may be more expensive.

Can I use any brand of water softener filter for my Culligan system?

No, using only filters designed for your Culligan water softener system would be best. Filters made by other brands may not be compatible with your system and can cause damage or inefficiencies. Therefore, it is essential to make sure you are using the right type and brand of filter for your particular water softener model.


By changing your Culligan water softener filter, you can enjoy the many benefits of soft water. Soft water will help reduce energy costs while providing a softer feel and improved taste. Additionally, replacing the filter regularly helps to ensure that the machine is running optimally and will provide years of trouble-free service.

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