... over-load, waterless, etc;automatically recovery;control water height;easy installation, maintenance-free, safe, reliable, energy-saving, efficient;Photovoltaic water ... the equipment has been damage through abuse, careless, improper installation, accident or mishandling during shipment, connecting to improper line ... inch 48V screw solar powered solar submersible water pump system (4SPS3.6/80-D48/750)