I have a 16x32, 13500 gal, above ground pool and I am going to need a new filter/pump in the next year. I currently have a 2HP tropicana pump and a cartridge filter with 150sq ft. I don't know if these numbers are important or not. I usually run my pump 12-24hrs per day because my pool is under a large dirty tree and because I am really forgetful about turning it off and on. Anyway, I was wondering if I should stay with this type of pump/filter or what would be the best for energy usage. Also is there any pumps that have a timer that I could set to only run say 12 hours per day. I would love some advice/options. Thanks in advance!