I have a simple question that I have been struggling with. Lets say my target FC is 6. If I put in enough bleach to get to 10, will I lose (or waste) more bleach to UV during the next 24 hours, than if I had put in enough to get only to 7? (assuming pool is clean, clear, and CYA = 40)
Put another way, can a fixed amount of UV break down a fixed amount of chlorine, regardless of chlorine ppm? Or does the break down increase with higher chlorine concentrations?
I hope my question makes sense. I know I could experiment and come up with an "answer," but I would still not be sure. Too many variables involved. This is a real brain teaser to me.