Typically have a range of 12 to 100+ ft. (3 to 30+ m) in diameter and have capacities of 8,000 to 1.5 million gallons (30,000 to 5.6 million liters)
Typically have a range of 2.5 to 12 ft. (.75 to 4 m) and have capacities between 275 and 8,000 gallons (1,000 to 30,000 liters).