How Do I Clean My Pool Filter?
1. Cleaning a Cartridge Filter:
Materials Needed:
Hose with a spray nozzle
Cartridge filter cleaner (optional, but recommended)
Bucket or container (optional)
Steps:
Turn Off the Pump:
Make sure your pool pump is turned off before working on the filter.
Remove the Cartridge:
Open the filter housing and carefully remove the cartridge from its compartment. Depending on your filter model, you may need to unscrew or unlatch the filter housing.
Rinse the Cartridge:
Use a hose with a spray nozzle to rinse off the debris from the cartridge. Start from the inside and spray outward to push out the dirt, leaves, and algae trapped in the filter pleats. Avoid using high-pressure water as it can damage the filter material.
Soak the Cartridge (if necessary):
If the cartridge is very dirty or hasn’t been cleaned in a while, soak it in a mixture of water and a specialized cartridge cleaner for 1–2 hours. You can find these cleaners at pool supply stores. Follow the manufacturer’s instructions on the product.
Scrub the Pleats:
If there are stubborn dirt deposits, gently scrub the pleats of the cartridge using a soft brush (like an old toothbrush). Be careful not to damage the filter fabric.
Rinse Again:
After soaking and scrubbing, rinse the cartridge thoroughly to remove any cleaner residue or loosened debris.
Inspect the Cartridge:
Check the cartridge for signs of wear and tear. If you notice any holes or significant damage, you might need to replace the cartridge.
Reinstall the Cartridge:
Once the cartridge is clean and dry, carefully reinstall it in the filter housing and close the compartment.
Turn on the Pump:
Turn the pump back on and check for proper operation.
2. Cleaning a Sand Filter:
Materials Needed:
Backwash hose (for backwashing)
Pool filter cleaner (optional, but useful for deep cleaning)
A bucket of water (optional)
Steps:
Turn Off the Pump:
Turn off your pool pump before starting the cleaning process.
Backwash the Filter:
Locate the multiport valve on your sand filter and set it to the "Backwash" position.
Turn the pump back on to begin the backwashing process. This sends water through the filter in the opposite direction, flushing out trapped debris and contaminants.
Let it run until the water in the sight glass (if your filter has one) runs clear, which usually takes 2-3 minutes.
Rinse the Filter:
After backwashing, set the multiport valve to the "Rinse" setting and run the pump for about 1-2 minutes to ensure that any remaining debris is flushed out and the filter bed is settled.
Shut Off the Pump:
Once the rinse cycle is complete, turn the pump off again.
Clean the Sand (Optional - For Deep Cleaning):
If you want to deep clean the sand filter (every 3-5 years or if it’s really dirty), you can use a sand filter cleaner:
Add the cleaner to the filter through the skimmer or the multiport valve, following the manufacturer’s instructions.
After adding the cleaner, let the filter run for a few minutes, then backwash and rinse again.
Inspect the Sand:
If your sand looks compacted, dirty, or hasn’t been replaced in a while, you may need to change it. To do this, drain the filter, remove the sand, and replace it with fresh pool-grade filter sand.
Reassemble and Test the Filter:
Once cleaning is complete, set the multiport valve back to "Filter" and turn the pump on. Check the system for proper operation.
Tips for Both Types of Filters:
Regular Maintenance: Clean your cartridge filter every 2–4 weeks and your sand filter every 4–6 weeks, depending on pool usage. If you have a high debris load (like trees around your pool), you may need to clean them more often.
Replace as Needed: If your cartridge is showing signs of wear, or your sand filter has developed channels that reduce filtration efficiency, replacement may be necessary.
Use Filter Cleaner: For both types of filters, using a filter cleaner periodically can help improve efficiency and remove oils or other stubborn debris.
Check Pressure: Regularly monitor the filter pressure gauge. If the pressure increases significantly (usually 8-10 psi higher than normal), it’s time to clean the filter.
Keeping your pool filter clean will ensure better water circulation and filtration, ensuring cleaner and healthier pool water.