Fountain nozzle spray patterns are critical to achieving diverse hydraulic aesthetics, ranging from elegant arcs to dynamic bursts. Nozzle designs leverage fluid dynamics principles to manipulate water flow velocity, pressure, and dispersion. Common patterns include: Fan Spray: Wide, flat arcs created by elliptical or slotted nozzles, ideal for horizontal water curtains. Cone Spray: Conical dispersion from circular nozzles, forming uniform water domes or umbrellas. Jet Stream: High velocity, narrow streams produced by precision bored nozzles, suitable for tall vertical fountains. Misting Nozzles: Fine droplets generated by high pressure systems, creating ethereal fog effects. Dandelion Spray: Radiating spikes from a central hub, resembling floral shapes. Nozzle materials, such as brass, stainless steel, or engineered plastics, must withstand water pressure and corrosion. Adjustable nozzles allow on site modification of spray angles or intensities, while fixed designs offer consistency. Computer aided design (CAD) tools simulate spray patterns to optimize coverage and visual harmony in fountain layouts. Integrating nozzles with lighting and music systems enhances their dynamic appeal, making them essential components in interactive or performance based fountain installations.