How to Know When a Pool Filter Is Done

Filter problems love to disguise themselves as “chemistry issues” and that’s exactly how pool owners waste weekends and pool pros lose hours. We walk through the real decision that matters: do you simply need new filter media, or is it time to replace the whole filter body because the tank, clamp, or lid is worn out and headed toward failure. We start with the basics in plain language: what “filter media” means for cartridge, DE, and sand systems, and why each has a different lifespan. Then ...