1. Check whether the impeller is blocked by debris everywhere, check the parts that are easily blocked, and sort out the debris.

2. Check whether the impeller of the stainless steel self-priming pump is worn. If it is worn, it is necessary to replace the spare parts in time.

3. Check whether the mechanical seal of the stainless steel self-priming pump has oil leakage. If there is oil leakage, please replace it in time.

4. Human factors. Customers choose their own models and equip their own motors. Due to the low motor power, the situation of small flow, low head or even no water supply will occur.

5. The outlet management device is incorrect, there are too many elbows, and there are too many N-shaped pipes. It is recommended to install an active exhaust valve at the highest point.

6. In the pump body, the filter screen of the inlet pipe may be blocked by debris stones: check and remove the blockage.

7. Improper installation of stainless steel self-priming pump. The center distance of the two pulleys is too small or the two shafts are not parallel, the transmission belt is too tight to the top of the device, resulting in a too small wrap angle, the calculation error of the diameter of the two pulleys and the large eccentric distance between the two shafts of the pump driven by the coupling, etc. Changes in pump speed.