How To Change Sand In Swimming Pool Filter?

How To Change Sand In Swimming Pool Filter

Any property would benefit from having a swimming pool because it offers a fun and cool method to cool off during the summer heat. But maintaining a swimming pool might require a lot of labor. Changing the sand in the filter is one of the most crucial steps in pool maintenance.

Your pool’s water is kept clean, clear, and safe to swim in thanks to the sand in the filter, which takes out dirt and other particles from the water. But the sand will eventually fill up with dirt and debris and need to be refilled. In this article, we’ll go over how to change the sand in your swimming pool filter, as well as filter maintenance advice and how to fix typical problems.

Preparing for the Sand Change

There are a few things you must do in order to get ready before changing the sand in your pool filter. The first stage is to compile all the equipment and tools required. You will require a hose, a bucket, a pool brush, and a filter wrench. These tools will be used to empty the filter tank of the old sand and to remove the filter lid and laterals.

The pool must then be drained, and the pump must be turned off. Before you start changing the sand, it’s crucial to make sure the pool is entirely emptied. Remove the filter top and drain the tank after the pool has been drained and the pump has been turned off. To accomplish this, drain the water from the filter tank using a hose.

The laterals and standpipe must be removed after the water has been drained from the filter tank. The standpipe is the plastic pipe that passes through the center of the filter tank, and the laterals are the little plastic tubes that are found inside the filter tank. It’s crucial to take off these components so you can access the old sand in the filter tank and take it out.

Replacing the Sand

The amount of sand required for the filter needs to be measured next. The proper type and quality of sand should be used for your filter because not all sand is made equal. Silica sand, which is available in various grades, is the most typical type of sand used for swimming pool filtration. To make sure you are using the proper grade of sand for your filter, it is crucial to check the manufacturer’s instructions.

In order to avoid disturbing the laterals, gently pour the required amount of sand into the filter tank after obtaining it. Instead of just dumping the sand out of the bag into the filter tank, it’s crucial to utilize a bucket or other container. This will lessen the likelihood of sand clogging the laterals after entering them.

It is now time to replace the standpipe and laterals with fresh sand in place. The placement of these components should be the same as when they were first installed. Replace the filter lid after installing the standpipe and laterals.

Finishing the Sand Change

It’s time to restart the pump and fill the pool when the fresh sand has been added and the filter lid has been secured. However, it’s crucial to check for leaks before you do this. The filter tank frequently develops a tiny leak, so it’s crucial to stop any leaks before turning the pump back on.

Backwash the filter and check the pressure gauge after the pool has been refilled. Cleaning the filter from the inside out will assist get rid of any dirt or debris that might have gotten into the fresh sand. The pressure gauge is a crucial instrument for tracking the effectiveness of the filter. A high reading on the pressure gauge may mean that the filter needs to be cleaned because it is clogged, while a low reading can mean that more sand needs to be added or that there is a leak.

The time clock and automatic valves should be reprogrammed if everything is operating normally. The automatic valves and timer govern how long the pump runs and how much water flows through the filter. It’s crucial to configure these appropriately so that the water flows through the filter properly and at the best times.

Finally, fill the pool with the necessary chemicals. To ensure that the pH and chlorine levels are adjusted after changing the sand in the filter, it’s crucial to add the right chemicals to the pool. This will ensure that the water is safe for swimming and help prevent the formation of algae and bacteria.

Tips for Maintaining Your Sand Filter

It’s crucial to maintain your pool filter after you’ve changed the sand in it to make sure it keeps functioning properly. Backwashing and cleaning the filter on a regular basis is one of the most crucial things you can do. Any dirt or debris that has accumulated in the sand will be helped to eliminate by doing this.

Additionally, it’s critical to keep an eye on the pressure gauge and clean or replace it as required. You should also check the level of sand and add more as necessary, adhering to the manufacturer’s instructions for the kind and quantity of sand to use.

Checking the laterals frequently for obstructions is another crucial maintenance advice for sand filters. The little plastic tubes inside the filter tank called laterals are susceptible to clogging with dirt and debris. The filter’s efficiency may be compromised if the laterals clog, which can also raise the pressure gauge’s reading. Simply take off the filter lid and look at the laterals. If they are clogged, you should either replace them or clean them with a brush.

Troubleshooting Common Issues

There may be occasions when your pool filter isn’t functioning properly despite your best efforts. A high-pressure reading, which can signal clogged laterals or the need for backwashing, is one of the most frequent problems. On the other hand, low-pressure measurements may point to a leak or the need for extra sand. Cloudy or green water may indicate a clogged filter or incorrect chemical concentrations.

It’s crucial to immediately check for obstructions in the laterals if you notice a high-pressure measurement. If the laterals are clogged, you should either replace them or clean them with a brush. The filter probably needs to be backwashed if the laterals are not clogged. Simply turn the valve to the backwash position and run the pump for a few minutes to backwash the filter. Any dirt or debris that has accumulated in the sand will be helped to eliminate by doing this.

It’s crucial to immediately look for leaks if you see a low-pressure reading. The filter probably needs extra sand if there are no leaks. Simply shut off the pump and lift the filter top to add extra sand. After that, fill the filter tank with the right amount of sand and put the filter lid back on.

Cloudy or green water may indicate a clogged filter or incorrect chemical concentrations. It’s crucial to backwash the filter and check the chemical levels before attempting to resolve this problem. Add the proper chemicals to the pool to restore equilibrium if the chemical levels are out of whack. If the issue doesn’t go away, you might need to shock the pool or add an algaecide to get rid of any potential algal.

Frequently Asked Questions

How frequently should the sand in my pool filter be changed? The sand in the filter needs to be replaced every 3-5 years, depending on how often the pool is used. But it’s crucial to monitor the filter’s effectiveness and change the sand if you observe a drop in efficiency or an increase in pressure readings.

What kind of sand must I use? The most popular type of sand for pool filters is silica sand, which is available in several grades. It’s crucial to use the correct grade for your filter and to follow the manufacturer’s instructions.

Is it possible to substitute zeolite or glass beads for sand? Although some filters are made to work with substitutes, it’s still a good idea to check the manufacturer’s recommendations. Your filter’s performance may be harmed if the improper kind of filter material is used.

What are the telltale signals that my filter’s sand needs to be changed? A pressure gauge reading that is regularly higher than usual, hazy or green water, or debris that is not being adequately filtered out are a few indicators that it’s time to change the sand.


A crucial step in preserving the general wellness and cleanliness of the pool is replacing the sand in the filter. To make sure the filter is operating properly, it’s critical to follow the necessary protocols and utilize the proper type and quality of sand. Regular upkeep and solving typical problems can also help the filter last longer and maintain your pool clear and clean.

Keep in mind that a well-maintained pool not only looks better but also makes swimming safer and more pleasurable for everyone. Keep an eye on the filter’s functioning, and replace the sand if you detect any changes, such as high-pressure readings, hazy water, or debris in the water. The health and safety of your pool depend on your pool filter, so make sure to schedule routine maintenance appointments and keep a lookout for any potential problems.