1. Water supply system:




Water pump impeller wear: After long-term use, the water pump impeller may wear, resulting in uneven centrifugal force generated when it rotates, which in turn affects the output pressure of the water pump and makes the pressure unstable. For example, the impeller blades become thinner and deformed, and the gap between the impeller and the pump casing increases, which will cause pressure fluctuations.


2. Pipeline system:



3. Control and regulation system:



4. Other factors:


Equipment load changes: If the load of the irrigation or other working system connected to the automatic dripper changes, such as an increase in the irrigation area, an increase in the number of sprinklers, etc., the water demand will change, making the pressure of the automatic dripper unstable. For example, an automatic dripper originally designed for irrigation of 100 square meters may drop in pressure when the irrigation area is expanded to 200 square meters due to the increase in water flow demand.