Hello all - long time lurker - finally making the jump to BBB, but I am going to need some help.
CYA - 100
FC - 4.5
CC - .5
TC - 5
Ph - 7.8
TA - 90
CH - 430
CYA and CH are high. Live in north texas and it is starting to warm up. I never had that high of CH before. Prolly always had crappy readings from original test kit from pool supplier. Water is very clear.
Do I need to drain some water? If so how much? I have 20.6k gallon pool.
I am going BBB so steer me the right way! Thanks!