is 6 submersible water pump introduces a 52 stage impeller assembly a fire fighting water hose of 1 5 inch and 1200 m long for water transmission and 3 water operating hoses spray gun 39 s nozzle diameter is 15 mm there is one gun nozzle measured by satellite positioner lift from the last water outlet position to the water level is 170 m water outflow is 3 2 m3 h and spraying distance is 7 5 m so it can meet fire fighting need what differs from application example 2 is that number of the first blades is 5 submersible water pump introduces a fire fighting water hose of 1 5 inch and 1200 m long for water transmission and one water operating hose spray gun 39 s nozzle diameter is 5 mm there is one gun nozzle measured by satellite positioner lift from the last water outlet position to the water level is 200 m water outflow is 3 0 m3 h and spraying distance is 10 m so it can meet fire fighting need what differs from application example 2 is that number of the first blades is 7 submersible water pump introduces a fire fighting water hose 33 of 10 inch and 140 m long for water transmission and 3 water operating hose spray gun 39 s nozzle diameter is 3 mm there are 2 gun nozzles measured by satellite positioner lift from the last water outlet position to the water.