6 p.m. – Learn how rainwater harvesting and rain barrels are a great way to conserve water during a drought (and any time). Required pre-registration is $10 and includes rain barrel, installation kit and viewing of “Tapped Out,” a presentation about Atlanta’s water needs and solutions. Dunwoody City Hall, 41 Perimeter Center East, Dunwoody, 30346. Call 678-382-6700 with questions, and go to: www.dunwoodyga.gov to sign up.