I just setup new 18 x 9 52 intex. with 1200 gph sand filter and SWG. I added salt 105 lbs and liquid stabilizer( cyanuric acid) 1/2 gallon. I live in arizona and was wondering when the best time is to run my SWG and test water. The temps here are already 110 . What is the most efficient way to create my chlorine. Should I run at high sun or at night? and then what time should I test? I know UV kills chlorine.