Clean a pool filter when the gauge reads 8–10 PSI above its clean baseline, return flow drops, or the water stays cloudy with correct chemistry. Cartridge, quad and DE filters each need a different method. Clear Ripples does full quad and DE filter teardowns starting at $250.
The Three Filter Types
Florida pools run three main filter technologies — sand, cartridge, and DE (diatomaceous earth). Each works on a different principle, traps debris at a different particle size, and has a completely different service protocol. What's correct for one type is wrong for another. Using the wrong approach doesn't just fail to clean the filter — it can damage the media and reduce filtration efficiency long-term.
Signs Your Filter Needs Attention
Your filter talks to you through its pressure gauge and your water clarity. Rising pressure, reduced jet flow, and persistent cloudiness with correct chemistry are all signs the filter is working harder than it should. What that sign actually means depends on your specific filter type — the same symptom points to different root causes across sand, cartridge, and DE systems.
Why Annual Professional Service Matters
Every filter type has a service interval that most homeowners miss — not because the filter looks dirty, but because the buildup that causes the most damage (oils, sunscreen, mineral scale) isn't visible. A filter that looks clean can be performing at a fraction of its rated capacity. Annual professional service catches this before it starts silently degrading your water quality and putting extra load on your pump.
Not sure what type of filter you have or when it was last properly serviced? We assess it on every visit — contact us here. Filter and pump service is included in every weekly maintenance visit. See transparent pricing.