I'm just wondering how often other owners of vinyl above ground pool kits that came with the pump or have a pump that uses the disposable paper like filter cartridges are having to clean and replace their filter cartridge? I wash mine daily and usually replace it completely every other week. I have not had any issues as of yet with algae or water issues but my filter cartridge is always dirty when I check it daily and I am wondering if that is what most other users have come across as well. I do have a skimmer on one of my two intake valves so it helps a little.