Bob Lowry on Which Pool Chlorine Is Actually Strongest

“Trichlor is 90% available chlorine, so it must be the strongest” sounds logical until you follow the math all the way through. We sit down with Bob Lowry to untangle the biggest chlorine strength myth in pool care, breaking down what “available chlorine” actually means, why the industry compares everything to chlorine gas, and how a percentage on a bucket can mislead even experienced pool owners and pool service pros. We talk through the practical way to think about dosing: pounds of chlori...