... (TDH) will determine if you need a positive displacement pump or centrifugal pump. In general, positive displacement pumps (diaphragm, piston, ... a tracker or fixed mount for my solar modules?The answer to this question depends on your application (domestic use ... system includesSolar panels, Battery, Mainframe box, Controller, Inverter, Pump, Pump protector, cable(18M), Wire rope Do not includeWater ...