The reason your pool filter is blowing out sand is because the filter media is leaking back through the return lines. This indicates that there is a broken section in your pool filter causing the sand to escape.

Having sand in your pool can be a frustrating problem, but it can be fixed by identifying and repairing the damaged part of your filter. We will explore the causes of sand blowing out of pool filters and provide solutions to help you fix the issue and maintain a clean and safe swimming pool.

Common Causes Of Sand Blowouts

Sand blowouts in pool filters can be caused by a few common factors. One reason is overfilled or incorrect sand levels, which can lead to poor filtration and sand escaping into the pool. Another cause could be damaged or cracked filter laterals, which allow sand to pass through.

Using improper sand size or type can also result in blowouts, as it may not effectively trap debris. Additionally, inadequate backwashing or rinsing can lead to a buildup of sand in the filter, which can eventually blow out. It’s important to address these issues promptly to maintain a clean and safe swimming pool.

Why is My Pool Filter Blowing Out Sand? Find Out Now!


How To Identify And Troubleshoot Sand Blowouts

The secret lies in your sand filter. The reason you’re finding sand in your pool is that the sand filter media of your pool filter is somehow coming back through your pool’s return lines. This indicates a problem with your pool filter.

It means that some section of your pool filter is broken and leaking sand out. To identify and troubleshoot sand blowouts, you can start by checking the sand levels in your filter. If the sand level is too low, it may cause sand blowouts. Inspect the filter laterals for any damage or cracks that could be causing sand blowouts. Additionally, ensure that you have chosen the right sand for your filter. Using the wrong type of sand can lead to sand blowouts. It’s also important to follow proper backwashing and rinsing techniques to prevent sand blowouts.

By following these steps, you can tackle the issue of sand blowouts in your pool filter.

Preventive Maintenance For Sand Filters

The secret behind why your pool filter is blowing out sand lies in the filter’s media. When you find sand in your pool, it indicates that the filter media is somehow escaping through the return lines. This issue arises due to a broken or damaged section of the filter, allowing sand to leak out.

To prevent this problem, regular monitoring of sand levels is crucial. You should schedule inspections of your filter’s laterals to ensure they’re in good condition. Additionally, using the recommended size and type of sand is important for optimal filtration. Following proper backwashing and rinsing procedures will also help maintain the efficiency of your sand filter.

By implementing these preventive maintenance practices, you can minimize the occurrence of sand blowing out of your pool filter.

Seeking Professional Help For Persistent Sand Blowouts

Tting sand pass through instead of trapping it. When DIY solutions don’t work, it’s time to seek professional help. Hiring a pool filter repair specialist is crucial in identifying and fixing the issue. They have the expertise to diagnose and repair any damage to your pool filter system.

It’s also important to choose a reliable pool service company that offers professional maintenance and repair services. With their assistance, you can ensure that your pool filter is working properly and preventing sand blowouts. Don’t let persistent sand blowouts ruin your pool experience.

Seek professional help and enjoy a clean and well-maintained swimming pool.


Frequently Asked Questions Of Why Is My Pool Filter Blowing Out Sand?

Why Is My Sand Filter Spitting Out Sand?

The presence of sand in your pool is likely due to a broken or leaking section of your sand filter. The filter media is returning back through the return lines and causing the sand to spit out. To fix this issue, you will need to identify and repair the broken section of the filter.

It is recommended to consult a professional or pool service technician to diagnose and fix the problem. Removing the sand from your pool and replacing it is not a solution because the issue lies within the filter itself. Taking prompt action to resolve the problem will help ensure that your pool water remains clean and free of sand debris.

Why Is My New Pool Filter Blowing Out Sand?

The reason your new pool filter is blowing out sand is because there is a problem with the filter media. It may be broken or damaged, causing the sand to leak back into the pool through the return lines. This is a common issue that needs to be fixed promptly.

To resolve this problem, you will need to inspect the filter for any cracks or damage and replace the broken parts. You should also check if the correct amount of sand has been added to the filter. Too much sand can cause it to blow out.

Overall, it is important to address this issue to ensure that your pool filter is working efficiently and preventing sand from getting into your pool.

How Do I Know If My Sand Filter Laterals Are Bad?

If you suspect that your sand filter laterals are bad, there are a few signs to look out for. First, check if there is an excessive amount of sand in your pool. This can indicate that the laterals are cracked or damaged, allowing sand to escape into the pool.

Additionally, if you notice that the water flow in your pool is weak or there are particles floating in the water, it could be a sign of faulty laterals. Another indicator is if you find sand in the pump or filter basket.

If any of these issues are present, it’s likely that your sand filter laterals need to be replaced. Consulting a professional pool technician will help you accurately diagnose and address the problem.

What Happens If You Have Too Much Sand In Your Pool Filter?

Having too much sand in your pool filter can cause various issues. Firstly, it can result in decreased filtration efficiency, as an excess of sand can clog the filter and restrict water flow. This can lead to poor water quality and an increased risk of algae and bacteria growth.

Secondly, the excess sand can be blown back into the pool through the return lines, causing sand to accumulate in the pool. This can make the water cloudy and unpleasant to swim in. Additionally, the presence of excess sand in the pool can cause damage to pool equipment, including pumps and heaters.

It is important to regularly inspect and maintain your pool filter to prevent the accumulation of too much sand and ensure optimal filtration.


If you’ve noticed sand blowing out of your pool filter, it’s important to address the issue promptly. The presence of sand in your pool indicates a problem with your filter system. The most common cause is a broken or damaged sand filter, which allows the filter media to escape and enter your pool.

This can lead to cloudy water, clogged plumbing, and decreased overall filtration efficiency. To fix this issue, you will need to inspect your sand filter for any cracks or damage. If you find any, it’s crucial to replace the damaged parts or the entire filter if necessary.

Regular maintenance and cleaning of your filter can also help prevent sand blowouts. Additionally, be sure to follow manufacturer’s recommendations for the proper amount of filter media to avoid overfilling, as this can also cause sand to be discharged into the pool.

By addressing the reasons behind your pool filter blowing out sand, you can ensure a clean and enjoyable swimming experience for you and your family. Remember to consult with a professional if you’re unsure about how to troubleshoot or fix any issues with your pool filter system.