Mains-powered Air-O-Lator Carnival fountains start at approx. 0.8m tall and 1.8m wide for the ½ hp motor and go up to 2.5m tall and 6.5m wide for the 5 hp motor. While the spray height doesn’t vary significantly as the motors scale up, the volume of water being ejected does. For instance, a ½ hp motor ejects around 60,000LPH, while a 5 hp motor ejects around 342,000LPH. This volume of water is what impacts aeration, which is why a ½ hp motor can aerate up to ¼ acre of water, while a 5 hp motor can aerate up to 2.5 acres of water. Solar motors have the ability to match mains-powered motors in spray height and width, but only in optimal sun conditions.