Misting Systems are very popular for cooling outdoor spaces, including sporting areas. A system that produces smaller droplets creates a stronger cooling effect as the water evaporates quicker. However, smaller nozzle sizes can require more water pressure to work. Select the water pressure you might use and pick a mist nozzle. The App will find an estimate of the water flow rate. With an input of the number of nozzles and system usage time, the water amount used is computed.