how to clean a glass media pool filter


Author: PoolKing - Pool Sand Filter Manufacturers

Glass media pool filters are becoming more popular as people become more conscious of the need for clean and clear swimming pool water. They are superior to sand filters or other types of filters for their high efficiency, low maintenance, and low cost. However, just like any other pool equipment, it is essential to perform regular maintenance to avoid any problems.

In this article, we will discuss the steps on how to clean a glass media pool filter properly. We will also give you some tips on how to maintain this type of filter to ensure its longevity and optimum performance.

Why Clean A Glass Media Pool Filter?

Cleaning your glass media pool filter is critical to ensure its effectiveness in filtering out dirt, debris, and other contaminants from your pool water. Over time, the filter media will become clogged with these particles, reducing its ability to trap and remove them. That can cause your pool water to become cloudy or discolored, which is not only aesthetically unappealing, but it can also be unsanitary.

Moreover, a dirty filter can lead to reduced water flow, increased pressure, and energy consumption. That can cause your swimming pool pump to work harder, increasing your utility bills and potentially damaging your pool's equipment.

Five Steps to Clean A Glass Media Pool Filter

Below are the steps on how to clean a glass media pool filter:

Step 1: Turn off the Pool Pump

Before you begin cleaning your pool filter, make sure you turn off the pool pump to avoid any injury. And let the filter system cool down before you start working on it. Also, turn off any valves or switches that might be feeding water to the filter.

Step 2: Remove the Filter Lid

Next, remove the filter lid or top cover to access the media inside. In some models, you may need to remove the clamps, screws, bolts, or nuts that hold the lid in place.

Step 3: Remove the Glass Media

Carefully remove the glass media from the filter tank and place it in a container or plastic bag to dispose of it later. Rinse the container with clean water, so any waste that remains does not contaminate the media.

Step 4: Clean the Filter Tank and Laterals

Inspect the filter tank to check if there is any dirt, debris, or other particles that have accumulated inside. You can also use a filter cleaner or degreaser to spray or brush the inside of the tank to remove any residual grime that has built up. Make sure to clean your filter's laterals, too, as they are a crucial part of your system's filtration process.

Step 5: Reinstall the Glass Media

Once you have cleaned the filter tank and laterals, you can reinstall the glass media. Spread the glass evenly throughout the tank, making sure to cover the laterals' top. Then, reattach the lid, making sure it is tight and secure.

Tips to Maintain Your Glass Media Pool Filter

Here are some tips to maintain your glass media pool filter:

Tip 1: Backwash your filter

Backwashing your pool filter once a week or after a heavy rain will help prolong the life of your filter media. When you backwash your filter, you are effectively flushing out any debris, dirt or grime that has accumulated inside.

Tip 2: Check and monitor your pool filter pressure

A high filter pressure can indicate that your glass media pool filter needs cleaning. A quick visual check each week is a good habit to adopt. If the filter pressure is higher than recommended, it's time to backwash or clean the filter media.

Tip 3: Never use Acid to clean your filter

Acid can dissolve the glass media and damage your filter's internal parts. Avoid using products that contain muriatic acid or any chemicals that are not recommended by your filter's manufacturer.

Tip 4: Regularly inspect and clean the pool pump basket and skimmer basket

The pool pump basket and skimmer basket help to remove larger debris like leaves or twigs before it enters the pool filter. Ensure that you check and clean the baskets weekly, especially during the summer months when debris is more common.

Tip 5: Schedule weekly maintenance

Regular weekly maintenance is key to keeping your swimming pool crystal clear and healthy. Schedule time each week to skim and remove larger debris, test your pool water, and backwash or clean your filter as needed.


In conclusion, cleaning your glass media pool filter is a crucial aspect of maintaining your swimming pool. By following the above steps and tips, you can keep your pool filter functioning at its best and maintain crystal clear, healthy pool water all year round. Remember always to read and follow the manufacturer's instructions for your specific filter model.


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