Last year I didn't open the pool and open late this year. Pool was very green when I opened. We did some clean-up and I shocked couple of times and FC level to 12 that helped to make it little better but seems like a long way to go. Overnight the FC drops from 12 to 2.
These are my numbers
PH = 7.3
TA = 100
CH = 150
CYA = 0
I went to pool store and he mentioned my phosphate is very at 2500 and hence more chlorine will not help.
Please suggest, do I need to refill water, or take half off and refill or increase CYA first before spending more money on liquid chlorine. Please advice.
I use TFT Taylor kit for testing.