how to clean in ground pool filter


Author: PoolKing - Pool Sand Filter Manufacturers

How to Clean In Ground Pool Filter

Maintaining the cleanliness of your in ground pool filter is essential for the proper functioning of your pool system. Besides, regularly cleaning the pool filter can help extend its lifespan, save energy, and reduce water usage. However, cleaning an in ground pool filter can be daunting, especially if you are not familiar with the process. In this article, we will guide you through the necessary steps on how to clean your in ground pool filter to keep it in optimal condition.

Sub-title 1: Understand Your Pool Filter

Before you dive into cleaning your in ground pool filter, it is crucial to understand its type. There are three types of filters for in ground pools: sand filters, cartridge filters, and diatomaceous earth (DE) filters. Each filter has a different cleaning process, and it is crucial to follow the proper cleaning method for your specific pool filter. Check your owner’s manual or consult with a professional if you are uncertain about the type of filter in your in ground swimming pool.

Sub-title 2: Gather the Necessary Tools

Once you identify your pool filter, the next step is gathering the necessary cleaning tools. Typically, you will need a pool filter cleaner, a garden hose, a bucket, and rubber gloves. A pool filter cleaner is a specially formulated cleaning solution designed to break down grease, dirt, and other residues that accumulate on your filter.

Sub-title 3: Backwash Sand Filters

For sand filters, the initial cleaning step is to backwash. Backwashing is the process of reversing the flow of water through your filter to remove trapped debris. Turn off the pool pump, set the filter valve to “backwash,” and turn on the pump to let it run for two to five minutes. The dirty water will be released from the backwash port, so make sure that it empties into a proper drainage system.

Sub-title 4: Remove and Clean Cartridge Filters

For cartridge filters, start by turning off the pool pump and removing the cartridge. Use a garden hose to rinse off any loose debris from the filter. Next, mix the pool filter cleaner with water in a bucket according to the product’s instructions. Dip the filter cartridge into the bucket and let it soak for at least 30 minutes. Rinse the cartridge with a garden hose until the water runs clear. Finally, reinstall the filter cartridge and turn the pool pump back on.

Sub-title 5: Dismantle and Reassemble DE Filters

For DE filters, you will need to dismantle the unit and remove the filter grids. Check your owner’s manual for the correct procedure for dismantling the DE filter. After removing the filter grids, rinse them off with a garden hose to remove loose debris. Next, mix the pool filter cleaner with water in a bucket according to the product’s instructions. Soak the grids in the cleaning solution for a minimum of 30 minutes. Rinse the grids with a garden hose until the water runs clear. Reassemble the DE filter unit and turn the pump back on.


Regular maintenance of your in ground pool filter is essential to ensure that your pool system runs smoothly. Cleaning your pool filter goes a long way in maintaining the water clarity, reducing energy consumption, and prolonging the lifespan of your filter. The cleaning process varies depending on the type of filter, so it is essential to understand your pool filter and follow the manufacturer's instructions. With these tips and the proper cleaning tools, you can keep your in ground pool filter in optimal condition for years to come.


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