One often overlooked area of pool maintenance is cleaning or changing your filter cartridge. If your filter cartridge is obviously and excessively dirty or your pump seems to be running at a higher pressure than normal, it is probably time to clean or replace your cartridge. Remove your cartridge and clean it with a water hose or, for best results, a filter flosser cleaner. If you notice that the pleats are broken or are excessively worn and dirty after cleaning, it is probably time to buy a replacement filter cartridge. Making sure that you purchase the right one can be tricky. If you know your model number, we can find it for you quickly. If not, our website gives detailed measuring instructions to help you determine the model that you need.