how do you clean your pool filter


Author: Poolking - Swimming Pool Equipment Manufacturer

How Do You Clean Your Pool Filter?

If you own a pool, you know the importance of keeping it clean and well-maintained. One crucial part of keeping your pool clean is routine filter cleaning. In this article, we will discuss how to clean your pool filter, when to clean it, and why it is essential to do so.

What Is a Pool Filter?

Before we dive into how to clean your pool filter, let's first understand what it is and why it is necessary. A pool filter is a system that removes debris and contaminants from your pool water. There are three main types of pool filters: sand, cartridge, and diatomaceous earth (DE) filters. Each type differs in how the filtering media is used and what maintenance is required.

Why Is It Vital to Clean Your Pool Filter?

Cleaning your pool filter is essential for several reasons. A dirty or clogged pool filter can reduce water flow, increase energy usage, and shorten the lifespan of your pool equipment. It can also lead to poor water quality, which can cause skin irritation, cloudy water, and even algae growth. Regular maintenance of your pool filter can help prevent these problems and keep your pool clean and sparkling.

When Should You Clean Your Pool Filter?

How often you should clean your pool filter depends on the filter type and how frequently you use your pool. A general rule of thumb is to clean a sand filter once every five years, a cartridge filter every two to three months, and a DE filter every six months. However, you may need to clean your filter more frequently if you have a lot of debris or heavy pool usage.

How to Clean Your Pool Filter

Now that we understand why it is essential to clean your pool filter let's dive into how to do it. The following are general steps that apply to all filter types, but be sure always to follow the manufacturer's instructions for your specific filter.

Step 1: Turn off the pump and close any valves leading to the filter.

Before you start cleaning your filter, turn off the pool pump and close any valves leading to the filter. This step ensures no water is flowing through the filter during cleaning.

Step 2: Release any pressure from the filter.

For safety reasons, it is vital to release any pressure from the filter before cleaning it. Depending on your filter type, there may be a valve or gauge that allows you to do this.

Step 3: Remove the filter element.

Now that you have depressurized the filter, you can remove the filter element. This step varies depending on the filter type. For sand filters, use a wrench to unscrew the filter's housing and remove the sand. For cartridge filters, remove the cartridge, and for DE filters, remove the filter grids.

Step 4: Clean the filter element.

Next, it's time to clean the filter element. For sand filters, rinse the sand with a garden hose and scrub off any debris. For cartridge filters, rinse the cartridge with a garden hose and use a filter cleaner to remove any remaining dirt. For DE filters, rinse the grids with a garden hose and soak them in a filter cleaner solution.

Step 5: Reinstall the filter element.

After cleaning the filter element, it's time to reinstall it in the filter housing. Again, this step varies depending on the filter type, so be sure to follow the manufacturer's instructions.

Step 6: Start the pump and check for leaks.

Now that you have cleaned and reinstalled the filter element, turn on the pool pump and check for leaks. If everything looks good, open any valves leading to the filter and resume normal pool operation.


In conclusion, cleaning your pool filter is a crucial part of maintaining a clean and healthy pool. By following the steps we've outlined above and being consistent with filter cleaning, you can prevent costly repairs and keep your pool water sparkling. Remember to always follow the manufacturer's instructions for your specific filter type and seek professional help if needed.


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