Okay. I went to the pool store and had them analyze my water:
Results:
FAC 0
TAC 0
CH 180
CYA 60
TA 90
pH 8
Acid 3
Pho 300
I installed my new cartridges, added 14.2 gallons of clorox (10 182oz bottles) to shock. I've been running the filter since. The pool store said I needed to add phosfree & muriatic acid & chlorine.
Do I need to add phosfree or muriatic acid?

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