Our filter cracked open over the weekend and we have to replace. I remember when we bought the house the "pool guy" said it wasn't big enough for our pool and we should switch to sand. After discovering this sight I realized he wasn't doing his job properly and ya'll suggested that the filter was fine. Now that it has to be replaced I am wondering if we should go with the same cartridge type or switch to something that works better. All suggestions welcome as we are still new to the pool world! Our pool specs should be posted in my signature. Thanks!