This pump is with features of compact size, light weight and convenient use. This pump is widely used for house. Breed aquatics, mining, and construction site. Special design for wet part makes high efficiency and non-overload, to guarantee reliable and high efficient running under big flow range. Anti-blocked design for impeller allows tranferring liquids with suspended solids no more than 15mm and long fibre. The float switch can automatically cut off the power when overheating or overloading, to guarantee pump's security and reliability under hard enviroment