... Beautiful, with rust, corrosion, pollution, etc WQP series submersible sewage pump with stainless steel anti-clogging crowd said hydraulic component ... a durable, wear characteristics, can pump more than 8,000 hours continuous operation safety. 4 pump compact, small size, easy to ... to the sump. 8 float switch according to the desired water level changes. Automatic control of pump stop start, without ...