Disconnected cast-iron fittings and piping from the roof drain. Found out there was a split Roberto, hub band that had caused the leak. Installed all new 5 inch bands are connected onto the existing cast-iron fittings, which we had sandblasted before reinstalling. Made a slight adjustment on one of the Clevis hangers. Everything fitted really well, and snug. Appreciate giving us the opportunity to work on your building, let us know how else we can help you out in the future. Wishing you all a great day, and good luck starting up the new year with the school. Mark and Adam was Southside Plumbing.