how to change a sand pool filter

If you have a swimming pool, maintaining it is important to ensure that the water is safe and clean to swim in. One of the most important parts of the pool's maintenance is regularly cleaning and replacing the sand in the pool filter. The pool filter helps to remove dirt, debris, and other contaminants from the water, keeping it crystal clear and hygienic for you and your guests. In this article, we will take you through the steps to change a sand pool filter.

1. Know When to Change the Sand

The sand in your pool filter works to trap impurities and debris from the water. Over time, the sand will become clogged with dirt and will lose its filtering effectiveness. Once this happens, it is time to change the sand. On average, sand pool filters need to be changed every 3 to 4 years.

2. Gather Your Tools and Supplies

To change the sand pool filter, you will need some basic tools and supplies, including:

- Screwdriver

- Shop vac or other vacuum cleaner

- Pool filter sand

- Silicone lubricant

- Pool filter gauge

3. Turn Off the Power to the Pool Pump

It is essential to turn off the power to the pool pump before starting the filter change process. This is to ensure that the pump motor is not running during the process, which could cause damage to the filter and pump.

4. Release the Pressure

Before you can open the pool filter, you must release the pressure from the system. To do this, locate the air relief valve at the top of the filter, and open it. Once the pressure has been released, close the valve.

5. Remove the Filter Cap

Using a screwdriver or other appropriate tool, remove the clamp holding the filter cap in place. Once the clamp is off, you can remove the cap and set it aside.

6. Clean the Filter Tank

Use a shop vac or other vacuum cleaner to remove any debris, sand, or other particles from the filter tank.

7. Remove the Old Sand

With the filter tank clean, use a scoop or other tool to remove the old sand from the filter. Be sure to dispose of the old sand properly.

8. Inspect the Laterals

While the sand is removed from the filter, inspect the laterals that connect to the tank's bottom. If any of the laterals are broken or cracked, they must be replaced.

9. Add New Sand

Add new pool filter sand to the tank. The amount of sand required will depend on the size of the filter. Be sure to consult the manufacturer's instructions for specific recommendations.

10. Reassemble the Filter

Once the sand is in the filter tank, replace the filter cap and secure it with the clamp. Apply some silicone lubricant to the cap O-ring to ensure a good seal. Restart the pool pump and check the filter pressure with a pool filter gauge. The pressure gauge should read between 8 and 10 psi. If it is outside of this range, it may indicate an issue with the pool filter that needs to be addressed.

Conclusion

Changing the sand in your pool filter is an essential part of maintaining a clean and safe pool. By following these steps, you can ensure that your filter is working correctly, and your pool water is crystal clear. Keep in mind that if you are not comfortable with the process or have any questions, it is best to consult with a professional pool service company.