Hi. Thanks for everyone’s help. I did a simultaneous drain on Saturday but that didn’t do much to lower cya levels. I did a drain then refill on Sunday.
I really hate the black dot test. I’ve read all the tips and tricks for it... back to the sun, hold test by the waist, do the hokey pokey, blink 20 times...ok some of that was made up but you get the point.
Initial test Monday morning
FC 2.5
CC 0
PH 8.0
TA 130
CH 275
CYA 70-80?
since then I’ve added a total of gallon of liquid chlorine and 37 oz of muriatic acid... not at once... spread out since Monday morning.
uodated test results
FC 3.6
CC 0
Ph 7.7
TA 130
CH 290
Cya 60-70?
So now what?