WBS Solar submersible pumps are typically used to extract water from wells. If it is to be used in a river or pond, the performance and service life of the solar submersible pump will be affected. This is because the relatively large amount of sediment in the river and the relatively low water level. If you need to extract water from a river or pond, you can choose a WBS solar surface pump. The solar surface pump product link is: http://www.wbspump.com/products2091197/Surface-Solar-pumps.htm   If you want to know more about WBS solar water pump, please click: http://www.wbspump.com/   E-mail: diffulaustralia@qq.com Tel: +86 15067446433 Wechat: LD15067446433 WhatsApp: +86 15869127991 /+86 15067446433 /