By the way, what is your wall height on your pool? I think you may be overestimating the volume of your pool. I'm assuming it is 54" (same as mine ) which means your water level is around 50 inches. This puts your volume at more like 18K gallons. I was trying to determine how much chlorine a gallon of 12.5% bleach would add to your pool (assuming it is that strength) and need an accurate volume to do so.