Assuming I want to add my chlorine after the sun has "gone down"...exactly when can I call it "evening" and add my chlorine? I have my pump on a timer to conserve energy but it seems that I'm always going out in the dark to add chlorine and then have to turn the pump on for a couple more hours to mix. I was out at 6pm yesterday and wondered to myself, "hey, isn't the sun down enough to not degrade my chlorine"? I'm kinda using that timing of it's late enough in the day so you don't need to slather the sun screen on. Does it work the same way for chlorine? Doing it earlier while it's still light out would also help in the testing department as I will be able to see the darn vial color with natural light.

Shelley