How to Clean and Maintain Your Hot Tub Filter

Tools and supplies

• Garden hose with spray nozzle. A narrow spray stream helps flush debris from deep filter pleats.
• Hot tub filter cleaner. Use a spa-safe formula made for cartridge media so oils and residue break down effectively.
• Bucket for soaking. A dedicated soak container keeps cleaner contact even across the full cartridge.
• Clean towel. Drying before reinstalling reduces drips and keeps your work area safer.

Cleaning instructions

1. Turn off spa power at the breaker. This protects equipment and keeps the filter compartment safe to access.
2. Remove filter cartridges and inspect for damage. Replace cracked end caps or torn media before they affect circulation.
3. Rinse pleats thoroughly from top to bottom. Slow, even rinsing removes trapped particles that reduce water flow.
4. Soak in filter cleaner based on label directions. Proper soak time dissolves body oils and film that hosing alone leaves behind.
5. Rinse again before reinstalling filters. A final rinse removes cleaner residue so it does not re-enter your hot tub water.

How often to clean hot tub filters

• Quick rinse: weekly. Weekly rinsing keeps circulation consistent and supports cleaner, clearer water.
• Deep clean soak: monthly. Monthly soaking restores filter performance after normal use buildup.
• Replacement: about every 12-24 months. Swap sooner if pleats stay stained or flow problems return quickly.

When to replace hot tub filter cartridges

Replace filters when pleats stay dirty after cleaning, the media is frayed, or flow issues return quickly.