how often to change intex pool filter


Author: Poolking - Swimming Pool Equipment Manufacturer

Intex pools are classic and affordable above-ground pools that are perfect for families who crave summertime entertainment without breaking the bank. To keep your Intex pool functioning correctly, it's essential to care for it properly, including changing the filter regularly. But, how often to change Intex pool filter is a question that comes up frequently. In this article, we'll discuss everything you need to know about Intex pool filters and when to change them.

Understanding Intex Pool Filters

Intex pool filters are designed to keep the water in your pool clean, clear and free of debris such as leaves, dirt and bugs. They're generally small, lightweight, and easy to install. There are three primary types of Intex pool filters: cartridge, sand, and DE (Diatomaceous Earth) filters.

Cartridge Filters. Cartridge filters use a pleated, paper-like material that traps particles as water flows through it. They are easy to maintain and clean, and it's essential to regularly remove and rinse the filter cartridge to keep it functioning optimally.

Sand Filters. Sand filters are filled with a special type of sand that filters out debris as water flows through it. They require little maintenance but should be backwashed regularly to remove trapped debris.

DE Filters. DE filters use a layer of DE powder that traps particles as water flows through it. Like sand filters, DE filters require little maintenance but should be backwashed regularly to remove trapped debris.

When to Change an Intex Pool Filter?

So, how often should you change your Intex pool filter? The answer differs based on the type of filter you have, how frequently you use your pool, and how dirty the water is. Here are some factors to consider when determining when to change an Intex pool filter:

1. Type of Filter - As mentioned earlier, there are three primary types of Intex pool filters, and each type requires different maintenance and replacements.

2. Frequency of Use - If you use your pool infrequently, you may not need to replace your filter as often as someone who uses it every day.

3. Water Quality - If you live in an area with high mineral content or hard water, the extra minerals can more quickly clog the filter, requiring more frequent changing.

4. Pool Size - Bigger pools require larger filters and more frequent cleaning and replacement.

5. Level of Pool Care - Diligent pool care, including regular skimming, brushing, and vacuuming, can extend the lifespan of your Intex pool filter.

When to Change Intex Cartridge Filters?

For Intex Cartridge filters, it's generally recommended to change the filter every two weeks. Over time, the pleats in the filter become clogged with debris, reducing its ability to filter the water. If you notice the water becoming cloudy, the flow of water is reduced, or the filter is discolored and grimy, it's likely time to change your cartridge filter.

When to Change Intex Sand Filters?

Intex Sand filters will need replacement sand every three to five years. However, backwashing the filter moderately every week can prolong its lifespan. If you notice reduced flow, cloudiness, or algae growth despite routine backwashing, it may be time to replace the sand.

When to Change Intex DE Filters?

Intex DE filters, like sand filters, require periodic backwashing. DE powder can last for several filter cycles, but its effectiveness will decrease with time. You would notice a change in water quality and higher pressure on the gauge very quickly when the DE filter requires maintenance. It's generally recommended to backwash DE filters after every use, rinse it thoroughly, and add fresh DE powder to the filter when necessary.

How to Change an Intex Pool Filter?

Changing your Intex pool filter is a straightforward process; follow these simple steps, and you'll have a clean pool in no time:

1. Turn off the pump: Before changing the filter, turn off the pump to avoid any water flowing in or out of the filter.

2. Open the filter: Remove the clamp or other hardware holding the filter lid in place.

3. Remove the filter: Depending on the type of filter and configuration, you may need to unscrew or release the filter.

4. Dispose of the old filter: Carefully remove any debris, dirt, or used filter cartridges and dispose of them safely.

5. Install the new filter: Carefully insert the new filter type as instructed.

6. Secure the filter: Replace the filter and secure it in place as directed, do not overtighten!

7. Turn on the pump: Turn on the pump, and take a moment to observe the filter's performance initially.


Keeping your Intex pool filter properly maintained is crucial for the overall condition and health of your pool. Always follow the manufacturer's instructions and recommendations regarding maintenance and replacement. By doing so, you can keep your Intex pool crystal clear, clean, and enjoyable for the entire family. Be sure always to keep your pool cleaned, and maintain a proper chemical balance, which can significantly enhance the lifespan of an Intex pool filter.


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