1. The pump is close coupled with the electric motor. It runs in the water, which is safe and reliable.
2. There is no special requirement for well pipes and lifting pipes (i.e.: it can run in steel tube well, lime well and soil well. if the pressure permitted, steel, rubber, plastic pipe can be used as lifting pipes).
3. Installation, running and maintenance is convenient and simple. It is less space demand, so there is no need to build a pump station.
4. Simple structure, less material demand.