When sucking water from a river or pond, first take out the suction pipe and water filter from the tail cabin and then connect the suction pipe and filter according to the distance between the vehicle and the water source. After that, immerse one end of the filter into the water source and open the water inlet cap of the water pump and connect the other end of the suction pipe to the water suction joint of the water pump. When connecting, be sure to check carefully whether the sealing washers are complete and integral or not. Be sure to fasten the connectors to prevent air leakage. The water suction pipe shall not be twisted or above the water inlet of the water pump to prevent air-resistance. Immerse the water filter about 0.5m under water level to prevent sucking in any air. However the water filter shall not touch the water bottom in order to prevent sucking in any silt, sand and dirt.