how often do you need to change your pool filter


Author: Poolking - Swimming Pool Equipment Manufacturer

Pool maintenance is a vital aspect of owning a pool. One of the most critical components of pool upkeep involves changing the pool filter. A pool filter is like the kidney of the pool. It removes debris, unwanted particles, and other pollutants from the water and ensures that it remains clean and clear. All in all, it is advisable to change your pool filter periodically. In this article, we will explore how often you need to change your pool filter.

What is a pool filter?

Before diving into the frequency of pool filter changes, it is essential to understand what a pool filter is. A pool filter is a device that removes debris and contaminants from the pool water. The filter plays a vital role in maintaining the overall cleanliness and sanitization of your pool.

Types of pool filters

There are three types of pool filters, namely:

1. Sand filters: These are the most popular type of pool filters. They use sand to remove contaminants from the water.

2. Cartridge filters: These are filter cartridges that trap debris and particles inside.

3. Diatomaceous earth (DE) filters: These filters use a powdered sedimentary rock, diatomaceous earth, to trap particles and remove impurities.

How often do you need to change your pool filter?

The frequency of changing your pool filter depends on a variety of factors such as the type of filter used, the size of the pool, and the frequency of use. Generally, the recommended time for changing your pool filter is:

1. Sand filters: You need to change sand filters at least once every five years.

2. Cartridge filters: You should change cartridge filters every two years.

3. DE filters: You need to change DE filters every year.

Factors that affect the frequency of pool filter changes

1. Usage: The frequency of use is a significant factor in determining how often you need to change your pool filter. If you use your pool regularly, you will need to change your filter more often.

2. Size of the pool: The size of the pool also plays a role in the frequency of filter changes. Larger pools require more frequent filter changes.

3. Type of filter: As we have already discussed, the type of filter used determines the frequency of changes.

The benefits of changing your pool filter.

Changes the quality of the water: Changing your pool filter ensures that the water remains clean and clear.

Saves on energy costs: Clogged filters make the pump work harder, and this leads to increased energy consumption. Changing your filter offers the pump some relief and reduces the energy bills.

Saves on maintenance costs: If you keep your filter clean, you save on overall maintenance costs. Clean filters do not clog, and this reduces the need for repairs and replacements.


Maintaining your pool is an essential exercise that requires considerable attention. Changing your filter is a crucial part of pool maintenance. You must know when to change the filter, and it is advisable to follow the recommended guidelines. Remember, a clean and clear pool not only provides a great swimming experience but also contributes to better health.


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