How To Maintain Centrifugal Pumps And Deep Well Pumps During The Rainy Season

Aug 31, 2025

1, For a discontinued centrifugal pump, the pump and hose should be lifted out of the well and the stored water inside the pump and hose should be drained. Then, according to the technical requirements, carefully inspect the impeller, bearings, cup and other parts of the water pump. If there is any damage, they should be replaced in a timely manner. Wash the bearings with gasoline, apply butter, and then install them properly. The cast iron parts such as the bottom valve and bend pipe of the water pump, which have rusted, should be derusted, then coated with butter and stored in a dry place for future use in winter and spring.

2, Deep well pump. If the deep well pump is not used temporarily, it can be started and operated for half an hour every 7-10 days to prevent electrical equipment such as motors and starters from getting damp and the rotating parts of the water pump from rusting. If the pump is not in use for a long time, it should be taken out of the well for maintenance, rust removal, oil coating, and replacement. After assembly, it should be stored in the warehouse.

3, Electric motor. The motor is prone to moisture if not used for a long time, so it should be disassembled from the well and pulled back indoors to wipe off any dirt on the motor casing. The integrity of the machine core should be inspected according to technical requirements. If there are worn parts, they should be repaired or replaced. After meeting the technical requirements, they should be stored in the warehouse. If it is temporarily stopped, oil felt or plastic cloth can be placed on the motor and starter to prevent rain, moisture, and dust.

4, Diesel engine. During the summer, autumn, and rainy seasons, diesel engines that are temporarily unused by rivers or wells should be promptly lifted indoors. Conduct a thorough inspection, maintenance, replacement of parts, and oiling according to technical requirements to keep all parts in good technical condition. Then elevate and store it for future use in winter and spring.