I've been thinking of different filter types when I go to a bigger one, but this week of cleaning the cartridge may have convinced me that it would be better to stay with a cartridge. There is so much leaf and tree flowers ending up in the filter that I'm thinking I'd be loosing a lot of water backflushing a sand or DE filter all the time while the Oaks are flowering and dropping their leaves for March and April. At least, I'm assuming that all that debris would clog them up pretty fast and necessitate backflushing.

Waterbear, looks like we are practically neighbors, I'm in St. Aug Beach.

Thanks for your input. I may try letting the Cl, go back to normal levels and try a new cartrige until I put in a bigger filter.

Kevin