Your pool can look fine on paper and still be losing the chlorine battle. We dig into the frustrating “problem pool” scenario where you’re pouring in gallons of chlorine and the free chlorine (FC) reading barely budges, then break down what’s really happening when chlorine gets consumed faster than you can add it. With Bob Larry’s help, we walk through how to think like a detective: look at the environment, the deck, landscaping, runoff, bather load, and even the odd stuff people don’t mentio...