have a Coleman above ground vinyl 22' x 52". 12800 gallons. Flowclear cartridge filter pump.
It has been open about 2 weeks now. They water was crystal clear up until yesterday. It rained 3 or 4 days ago I added a pound of shock. Last shock was a week ago. Now 3 days later the pool clouded very badly. It is still bright blue but very cloudy. Pool store tested with this result.

FC.3.23
TC.3.91
CC. .68
pH.7.9
Alk 109
CH 110
CYA 86
Phos 5000

He says my phosphates are high and that is why it clouded.

Can anyone help me?