I understand the frustration, and did go through it myself.
As Marian said though, "the presence of CC indicates that the FC is killing something and converting to CC's" ... so it IS working.
I am thinking your CYA may still be higher than you think... which means more chlorine may be needed.
As Marian said though, "the presence of CC indicates that the FC is killing something and converting to CC's" ... so it IS working.
I am thinking your CYA may still be higher than you think... which means more chlorine may be needed.