May need a new pool filter system in the near future. Currently have a Sta-rite System 2 PLM-100 (cartridge filter) with a Pentair1 HP motor etc. . Pool is 11000 gallons. I do have a Caretaker system (pop up heads) so I don't know if that enters into the possible solutions. Can you give me some options as to possible alternatives for a new system. I handle my own weekly/monthly pool maintenance so ease of maintainance should be considered. 

                                                                                                                                                             Thank You

                                                                                                                                                             Brian OToole