My first brown water

[Phenom300]

I got my Taylor 2006 today and here are my numbers

ALK 170
PH 7.0
CH 80
CYA 55
FC 21
CC 0
TC 21

I knew my TC would be high because I nuked it which caused my brown problem to begin with. I have added some muratic acid over the last few days to lower my ALK, I am currently aerating to raise my PH. Is it ok that I have 0 CC?

My water is crystal clear but I still am backwashing rusty water into the yard.

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I was doing the chlorine test wrong. My FC is 9.0 and my CC is 0.5. The rest of the above numbers are the same.