We have designed our tanks to drain easily from the bottom spigot. Simply hook your water safe hose or a garden hose to your tank and open the valve. (remember to only fill your tank with a water safe hose, NOT a garden hose) If your tank is stored in basement you can drain into a floor drain, tub, toilet or outside depending on the set up. If your tank is stored in a garage you can drain it onto your lawn, use the water for your garden, use the water to rinse tools and equipment, wash a pet, or simply run the water directly into the gutter. Each situation is different. We encourage everyone to get as much use out of this valuable source of water as possible when rotating.