This is my first year of TFP. I bought the tf100 test kit. Have an 18x33 ABP. Have not gotten it clear for the past 3 weeks. Tried using just bleach but switched to trichlor as I don't have enough time to add gallons of bleach. I can't seem to get my free chlorine up no matter how much I shock it with shock bags or bleach. Here is my results from tests tonight: FC=.5; TA=40; CYA>100; PH=6.8; Total Chlorine=.5; calcium=220. What can I do to raise my pH and TA? Please let me know what I can do as I'm about ready to go to a pool store.