Why Your Chlorine Disappears Overnight

Chlorine that keeps crashing to zero can make you feel like you’re doing everything “by the book” and still losing. We dig into the real-world reasons pools won’t hold free chlorine in summer, when water temps climb, the UV index spikes, and normal dosing routines suddenly stop working. I share what I’ve seen across years in the field, including why a pool can chew through a gallon of liquid chlorine a day and still test empty, even with a CYA level that looks totally fine. We get practical ...