Hi my friend pool have problem.
pool size is 43,000 gallons
TA = 250
Total Chlorine = 10
Free Chlorine = 5
Total Alkalinity= 0
Cyanuric acid = 0
he test his pool 1 day after big raining. what should we do? i have some question about Cyanuric acid.
how is it zero? my friend use trichorine ( Chlorine 90% ) powder. so i have know idea why cyanuric acid is 0.