It works!!! We still need to assemble our second rain barrel. We did not use the equations to estimate the amount rainfall that we could harvest from the family room roof, so we were very interested last week to have our first rain fall with the barrel. We had moderate to heavy rain, a total of 4″ fall, filling the barrel in 1.5 hours. We had the hose open (not saving water) during the storm as we hadn’t put the overflow hose in yet. Today, we had light to moderate rain and it took most of the day to fill. And it still smells like Coca-Cola.
