How to Clean Pool Filter Media?

The best way to clean pool filter media depends on the type of filter you have, but typically involves hosing it down and occasionally using a cleaning solution. Here's a breakdown of how to clean the most common types of pool filter media:

Cleaning Cartridge Filters

Cartridge filters require regular cleaning to maintain optimal performance.

1. Remove the Cartridge: Turn off the pool pump and release any pressure in the filter tank. Carefully remove the cartridge from the filter housing.
2. Hose it Down: Use a garden hose with a high-pressure nozzle to spray down the filter pleats. Start at the top and work your way down, ensuring you remove all visible debris.
3. Deep Clean (Optional): For a more thorough clean, soak the cartridge overnight in a solution of water and filter cleaner (specifically designed for pool filter cartridges). Alternatively, you can use a solution of one part water and one part vinegar. Avoid using harsh chemicals like bleach, as they can damage the filter material.
4. Rinse Thoroughly: After soaking, rinse the cartridge again with a hose until all traces of the cleaning solution are gone.
5. Reinstall: Reinstall the cleaned cartridge into the filter housing, ensuring it's properly seated. Close the filter tank and turn the pump back on.

Cleaning Sand Filters

Sand filters are cleaned through a process called backwashing.

1. Backwash: Turn off the pool pump. Set the multiport valve to the "Backwash" position.
2. Turn on the Pump: Turn the pump back on and let it run until the water in the sight glass (if equipped) runs clear. This typically takes 2-3 minutes.
3. Rinse: Turn off the pump again. Set the multiport valve to the "Rinse" position.
4. Turn on the Pump: Turn the pump back on and run it for about 30 seconds to resettle the sand bed.
5. Return to Filter: Turn off the pump and set the multiport valve back to the "Filter" position. Turn the pump back on.
6. Deep Cleaning (Optional): Periodically, consider using a sand filter cleaner to remove built-up oils and minerals. Follow the product instructions carefully.

Cleaning Diatomaceous Earth (DE) Filters

DE filters require backwashing and periodic grid cleaning.

1. Backwash: Turn off the pool pump. Set the multiport valve to the "Backwash" position.
2. Turn on the Pump: Turn the pump back on and let it run until the water in the sight glass runs clear.
3. Turn off the Pump: Turn off the pump and set the multiport valve to the "Filter" position.
4. Add DE: Add the appropriate amount of DE powder to the skimmer while the pump is running to recoat the filter grids.
5. Grid Cleaning: At least twice a year, disassemble the filter and thoroughly clean the grids.
6. Hose Down: Remove the filter grids and hose them down individually, removing all DE and debris.
7. Soak (Optional): For stubborn buildup, soak the grids in a filter cleaning solution designed for DE filters.
8. Reassemble: Reassemble the filter, ensuring all parts are properly aligned and secured.

General Tips for Cleaning Pool Filter Media

• Frequency: A good general practice is to clean or backwash your filter at least once a month, or more frequently if your pool gets a lot of use or debris.
• Pressure Gauge: Monitor your filter's pressure gauge. A rise of 8-10 psi above the normal operating pressure indicates it's time to clean the filter.
• Safety: Always turn off the pool pump before performing any maintenance on the filter.
• Manufacturer Instructions: Always refer to your filter's manufacturer's instructions for specific cleaning procedures and recommendations.