When performing the overnight loss test at what point does the sun skew the results?
I'm wondering if I can add chemicals around 8PM, test before 9 and wait to check in the morning until 6:30.
Details: Currently the sunrise is 5:37 AM and sunset is 8:30 PM. My pool gets direct sunlight once it clears my neighbors tree, I would estimate that direct sunlight hits the pool around 7:30/8AM. Trees on the other side start to cut down exposure around 6-6:30PM.
I could always try it and if I'm showing a loss I can try checking earlier the next day.. are there any guidelines on this?