1) Choose water pumps according to local conditions. There are three types of commonly used agricultural water pumps, namely centrifugal pumps and axial flow pumps

And mixed flow pump. The centrifugal pump has a high lift but low water output, making it suitable for mountainous and well irrigation areas; The axial flow pump has a large water output, but its head is not too high, making it suitable for use in plain areas; The output and head of mixed flow pumps are between centrifugal pumps and axial pumps, making them suitable for use in plain and hilly areas. Users should choose according to the local conditions, water source, and water lifting height.

2) Water pumps that exceed the standard should be selected appropriately. After determining the type of water pump, it is necessary to consider its economic performance, especially paying attention to the selection of the head, flow rate, and supporting power of the water pump. It must be noted that there is a difference between the head (total head) indicated on the water pump label and the outlet head (actual head) during use, as there is a certain resistance loss when water flows through the water delivery pipe and near the pipeline. Therefore, the actual head is generally 10% -20% lower than the total head, and the water output is correspondingly reduced. Therefore, in actual use, it can only be estimated based on 80% to 90% of the head and flow rate indicated on the label. The selection of the supporting power of the water pump can be based on the power indicated on the label. In order to ensure quick start and safe use of the water pump, the power of the power machine can also be slightly higher than the required power of the water pump, generally about 10% higher; If there is already power, when purchasing a water pump, you can choose a matching water pump according to the power of the power machine.

3) Strictly follow the procedures for purchasing water pumps. When purchasing, it is necessary to verify the "three certificates", namely the agricultural machinery promotion license, production license, and product inspection certificate. Only with all three certificates can we avoid purchasing obsolete and inferior products.