I fitted one 100-litre butt under my shed gutter just to catch the summer rain: after the first storm, I understood what was going straight to the drain
A single summer downpour filled a 100-litre rain barrel to the brim in just fifteen minutes, exposing a startling reality: most homeowners have no idea how much water their roofs produce or where it vanishes. The math is simple but eye-opening, and the pollutants in that runoff reveal why capturing it matters more than you’d think.