There could be several factors:
1. Is there enough water? Check to ensure that there is enough water present in the tank to allow safe pumping; the Control System shuts the water pump once a sufficiently low water level has been reached.
2. Beware of air locks. If there is too little water in the tank, the pump may have drawn in a large air pocket that is preventing the flow of water.
3. Is the lift displacement too great? If you are operating a suction lift pump, be sure that the water reservoir you are drawing from is no more than 7 feet below the pump, otherwise the resistance to flow may be too great.
4. Are you using pipes that are too small or have too many elbows? Pumping water through small diameter pipes (and pipes with elbows and check valves) increases the water pressure, but as a result also increases flow resistance. If the resistance is too great, your pump will not perform.
Changsha Zoomlian Pump Co., Ltd, established in 1989, is an enterprise which engages in the production and sales of multistage pumps, centrifugal pumps, single stage pumps, inline pumps, split case pumps, sewage pumps, submersible pumps, fire pumps, oil pumps, irrigation pumps, chemical pumps, boiler feed pumps etc. Our products have a good reputation in the domestic and foreign markets covering the fields of energy, mining, metallurgy, petroleum, chemical industry, building materials, textiles, food, marine development, national defence construction, urban construction etc.
We are committed to providing the highest level of customer service, competitive price, speedy delivery and a comprehensive, cutting-edge product. Your satisfaction is our ultimate goal.