A view of the tank installation, the smaller tank is the first flush diverter. The 5" half round gutters are visible in this view as well as the leaf diverters I made from standard PVC parts. A newer design leaf diverter is shown here.
The 10,000 gallon fiberglass tank was obtained from L. F. Manufacturing in Giddings, Texas. There are five outlets on the bottom: 4 two inch spaced at 90 degrees apart and one 4 inch adjacent to the zero degree (lines up with the top inlet) outlet. There are two 4 inch outlets on the top, one at zero degrees, the other at 180 degrees. The PVC line on the right is the tank overflow.