I just installed the my 12x28 aloha II fiberglass pool. Pentair 320 cartridge filter, 1 hp Pentair dual speed motor. I am losing at least a 1/2 of water per day from my pool. I live in Arizona and its been around 115 degrees out here. is this normal evaporation? I am going to do the bucket test on it. however I am looking for some insight as well.