how often should i change my above ground pool filter


Author: Poolking - Swimming Pool Equipment Manufacturer


Having an above ground pool in your backyard is a great way to enjoy the summer days and keep yourself cool. However, one of the essential things to keep in mind when owning a pool is the maintenance required to keep it clean and safe to swim in. This maintenance includes changing your above ground pool filter regularly. In this article, we will discuss how often you should change your above ground pool filter and other necessary information regarding pool maintenance.

1. What is an Above Ground Pool Filter?

An above ground pool filter is an essential part of your swimming pool's filtration system. It is responsible for keeping the water clean and free from any debris, contaminants, or bacteria that can make your pool unsanitary and hazardous to swim in. The filter works by pumping the pool water through a medium that traps any impurities in the water, allowing clean and clear water to circulate back into the pool.

2. Why is it Important to Change Your Above Ground Pool Filter?

Over time, the medium in your filter will clog up with debris and other contaminants collected from the pool water. If the filter media gets too dirty, it will cause the water flow to slow down, making it challenging to keep the pool clean. Therefore, it is crucial to change the filter regularly to maintain proper water flow and keep your pool water clean and safe.

3. How Often Should You Change your Above Ground Pool Filter?

As a general rule, you should replace your above ground pool filter at least once a year. However, the frequency of changing your filter depends on how often you use the pool and the size of the pool. For example, if you use your pool frequently, you may need to change your filter more often than once per year.

4. Signs Your Above Ground Pool Filter Needs Replacing

There are several signs that indicate your above ground pool filter needs replacing. Some of the common signs include:

- Slow Water Flow: If you notice the water flow in your pool is slower than usual, it could indicate a clogged filter.

- Dirty Water: If the pool water has a cloudy, murky, or dirty appearance, it could be a sign of a dirty filter.

- High Pressure Gauge: If the pressure gauge on your pool filtration system is reading high, it means your filter is clogged.

- Shortening Backwash Times: If you notice that you need to backwash your pool more often than usual, it is a sign that your filter is clogged, and you need to replace it.

5. How to Change Your Above Ground Pool Filter

Changing an above ground pool filter is not a complicated process, but it requires some time and attention. Here are the essential steps to follow when replacing your above ground pool filter.

Step 1: Turn off the Pool Pump

Before you start changing your filter, turn off the pool pump to avoid any accidents or injuries while handling the equipment.

Step 2: Drain the Water

Drain the water from the filter system and disconnect any hoses or connections from the filter.

Step 3: Remove the Filter Housing

Remove the filter housing from the bracket or base, depending on your pool's design.

Step 4: Replace the Filter

Take out the old filter and dispose of it. Install the new filter and reassemble the filter housing.

Step 5: Connect the Hoses

Connect the hoses or connections to the new filter and make sure all connections are tight.

Step 6: Check for Leaks

Fill the filter system with water and turn on the pool pump. Check for any leaks or drips and make sure the water flows properly.


Maintaining your above ground pool filter is a crucial part of keeping your pool clean, clear, and safe to swim in. Knowing when to replace your filter and following the necessary steps will ensure your pool remains clean and healthy for you and your family to enjoy all summer long.


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