... in the laminar flow effects, lighting effects.Water supply pipe diameter, materialDN40 "Steel hoseBuilt-in ... wells dry pond, the pond if the water level should not exceed half the nozzle, spray ... nozzle.the tap water transport by the pressurized water supply equipment to nozzle and then water burst forth ... very broad, can be used in the water park, the Water amusement parks, children's playground, over ...