How to Choose the Right Submersible Pump There are various types of submersible pumps （https://www.china-soyue.com/product/water-pump/）on the market, such as centrifugal pumps, screw pumps, diaphragm pumps, etc. The 1.5 hp submersible pump is a centrifugal pump suitable for domestic and commercial purposes. A centrifugal pump generates centrifugal force through an impeller, pushing water from the suction port of the pump to the discharge port. The advantages of this kind of pump are simple structure, easy maintenance and stable operation. The material of a submersible pump has a great impact on its performance and service life. Common submersible pump materials include stainless steel, cast iron, plastic, etc. For the 1.5 hp submersible pump, it is recommended to choose stainless steel or corrosion-resistant plastic material to improve the durability and corrosion resistance of the pump.