A professional head algorithm (vertical head) for the well pump to be placed Down hole: 1. The professional explanation is: head = outlet pressure - inlet pressure. The test report at the factory is that the inlet pressure is zero (ie on the water) and the outlet pressure is the lift. 2. For example: the pump has a maximum head of 50 M, and the pump is placed in a deep position below the water surface (for example, 50 meters below the water surface). When the pump is running, The maximum height of the water outlet can reach 50 meters above the water surface and 100 m from the water outlet of the pump. 3. The above two points are theoretical algorithms, and the actual situation will be a little lost. Because of the loss of the pipeline, the pipeline loss is usually 10 meters per 100 meters.   If you want to know more about WBS SOLAR PUMP, please click: http://www.wbspump.com/   E-mail: diffulaustralia@qq.com Tel: +86 15067446433 Wechat: LD15067446433 WhatsApp: +86 15869127991 /+86 15067446433 /