how do you replace the sand in a pool filter


Author: Poolking - Swimming Pool Equipment Manufacturer

How to Replace Pool Filter Sand for a Clean and Clear Pool

Subheading 1: Introduction

Having a swimming pool in your backyard is a great way to enjoy the hot summer months. But to keep your pool clean and clear, you need to properly maintain it. One essential part of pool maintenance is replacing the sand in your pool filter. Over time, the sand can become clogged with debris and lose its effectiveness, which can lead to dirty, cloudy water. In this article, we will explain how to replace the sand in your pool filter so you can keep your pool sparkling clean.

Subheading 2: Determine Filter Size and Sand Type

Before you begin replacing the sand in your pool filter, you need to determine what type of sand and how much of it you need. The first step is to check the filter label or manual for the recommended sand type and amount. You can also check the label on the filter tank or look up the information online.

The next step is to determine the size of your filter. This is important because the amount of sand needed will depend on the size of the filter. You can usually find the filter size on the label, manual, or online. Once you know the filter size and sand type, you can purchase the necessary amount of sand from your local pool supply store.

Subheading 3: Turn Off the Pump and Release Pressure

Before you open the filter, make sure the pump is turned off and the pressure inside the filter is released. This will prevent any accidental water flow or pressure release when you open the filter, which can cause injury or damage.

To turn off the pump, simply press the off button on the control panel or unplug the power cord. To release the pressure inside the filter, you can use the air release valve or multiport valve. Refer to your filter manual for instructions on how to release pressure on your specific filter.

Subheading 4: Remove Old Sand and Clean Filter Tank

Once the pressure is released, you can begin removing the old sand from the filter tank. You can either scoop the sand out with a bucket or use a shop vac. Make sure you dispose of the old sand properly, as it may contain dirt, debris, and algae.

After the old sand is removed, you should clean the filter tank thoroughly with a hose or pressure washer. This will remove any remaining sand and debris from the tank.

Subheading 5: Add New Sand and Reassemble Filter

Once the tank is clean and free of debris, you can begin adding new sand. Pour the sand slowly into the filter and distribute it evenly with your hand to ensure proper coverage. Be sure to leave enough space at the top of the tank for the filter laterals.

After the new sand is added, you can reassemble the filter. This includes replacing the laterals, sand guard, and any other components that were removed during the sand replacement process. Be sure to follow the instructions in your filter manual to ensure proper reassembly.

Subheading 6: Test and Restart Filter

Once the filter is reassembled, you can test it to make sure it is working properly. Turn on the pump and let it run for a few minutes to ensure water is flowing through the filter.

You should also backwash the filter to remove any debris or fine sand particles that may have been left in the filter. Follow the instructions in your filter manual for proper backwashing procedure.


Replacing the sand in your pool filter is an essential part of pool maintenance. By following these steps, you can ensure your filter is working properly and your pool is clean and clear. Remember to check your filter manual for specific instructions and always take the necessary safety precautions when working with pool equipment.


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