I need major help please.......even though the water is blue it is extremely cloudy. It is an AG 24 FT approx 15,000 gallons. I just bought a new Cartridge Filter (first time using this type of filter) I have been taking the water each week to the pool store & they keep telling me all my levels are good, just keep shocking it & it will clear up. NOT happening. CYA is 83
PH 7.5
TA 120
I am about to empty the pool & add new water. Any ideas....sorry if I forgot to post any other info that you may need. Thanks!!