Have you ever been frustrated about how to clean your pool filter? Every time you see the pool water becoming cloudy or the pool sand filter pressure gauge reading higher, do you feel at a loss? Don’t worry, cleaning the filter isn’t complicated. With the right methods, you can easily handle it. Let’s see how to clean different types of pool filters and keep your pool sparkling.
Identify Your Pool Filter Type
First, you need to determine what type of pool filter you have: cartridge filter, sand filter, or diatomaceous earth (DE) filter. Each type of filter has different cleaning methods. After identifying the filter type, make sure you have the right cleaning equipment and set aside enough time to clean.
If you’re unsure about the type of filter system you have, refer to the pool filter user manual or consult a professional. This will help you perform targeted cleaning more effectively.
Frequency of Filter Cleaning
Cleaning your pool filter at least once a month is essential to ensure it functions correctly. When the filter’s pressure gauge reads 10 psi higher than the normal operating level, it’s time to clean the filter. Additionally, cloudy water may also signal that the filter needs cleaning. If you notice the pool water becoming cloudy, clean the filter promptly.
Performing a deep clean at least once a year is also recommended, depending on the filter type and usage frequency. Below, we will detail the cleaning methods for three types of filters.
How to Clean a Cartridge Filter
Cartridge filters are one of the easiest types to clean. Here are the detailed steps:
Turn Off the Pump and Release the Pressure
First, turn off the pool pump and ensure any timers that could trigger the pump are removed. For safety, open the air release valve to expel any excess air from the system.
Remove the Cartridge from the Filter Tank
Detach the clamps holding the filter, open the top of the filter, and carefully remove the cartridge. If the cartridge is damaged or worn out, replace it with a new one.
Clean the Cartridge
Use a garden hose nozzle to spray water onto the cartridge, ensuring you spray between the pleats. If the cartridge is particularly dirty, use a cartridge cleaner and follow the manufacturer’s instructions. Soaking the cartridge in a cleaning solution overnight can effectively remove grime.
Check the O-ring on the filter tank. If it’s in good condition, apply some lubricant. If the O-ring is worn out, replace it promptly.
Replace the Cartridge and Repressurize
Place the cleaned cartridge back into the filter and reassemble all parts. Open the air release valve to release air from the system until a steady stream of water flows out. Check the pressure gauge to ensure it is within the normal range.
How to Clean a Sand Filter
Sand filters require regular backwashing and chemical cleaning. Here are the detailed steps:
Backwash the Sand Filter
First, turn off the pump and set the multiport valve to “Backwash.” Connect the backwash hose to the waste outlet, then restart the pump and backwash for 1-2 minutes until the water runs clear.
Add Filter Cleaner
Turn off the pump and set the valve to the “Filter” position. Remove the pump’s strainer lid and add the sand filter cleaner to the strainer basket. Replace the lid and run the pump for about 15 seconds to ensure the cleaner reaches the filter, then turn off the pump and let it sit for at least 8 hours or overnight.
Backwash the Filter Again
Backwash the filter again for 3-5 minutes to remove the cleaner and debris. Restart the filtration system.
How to Clean a Diatomaceous Earth (DE) Filter
DE filters need both chemical cleaning and backwashing. Here are the detailed steps:
Backwash and Drain the DE Filter
Turn off the pump, set the multiport valve to “Backwash,” and connect the backwash hose to the waste outlet. Backwash for 1-2 minutes until the water runs clear. Turn off the pump, open the air release valve, and remove the drain plug to empty the tank.
Remove the DE Filter Manifold
Detach the clamps holding the filter, open the filter tank, and remove the manifold and all grids or fingers.
Rinse or Soak the Grids or Fingers
Use a garden hose nozzle to spray the manifold and grids/fingers, ensuring you remove all debris, including DE powder. If the manifold is very dirty, soak it in DE filter cleaner overnight.
Reassemble the Filter
After cleaning the manifold thoroughly, rinse the tank with a garden hose and reassemble the filter components, ensuring all parts are correctly installed.
Add Fresh DE Powder
Refer to the filter user manual to determine the amount of DE powder needed. Mix the appropriate amount of DE powder with water to form a slurry and pour it directly into the pool skimmer while the pump is running. Run the pump for at least 30 minutes to ensure the DE evenly coats the filter grids.
Conclusion
Seeing your filter in need of cleaning shouldn’t be overwhelming. By mastering the right methods, whether it’s a cartridge filter, sand filter, or DE filter, you can easily handle it. Regular and deep cleaning not only extends the filter’s lifespan but also improves its efficiency. This way, your pool stays clear, and every swim is a pleasant experience. So, let’s get started and give your pool a fresh look!