Hi pwocken, 9 years ago we installed a solar pump system (Lorentz is the brand name) and we have had a fairly good experience with it so far. We also use a normal electric AC pump. The normal AC pumps are 1) cheap 2) easy to repair 3) easy to install yourself 4) when shtf and the power goes off you’re in trouble what water concerns Solar DC pumps are 1) expensive 2) difficult to repair 3) difficult to install yourself, not the hydraulic part but the electronics involved in it 4) when there is a power grid failure you’re ok with water Looking back now I would; install a decent solar power system and use only AC pumps, adjusting the pumping (in a 2000 liter tank) to the hours of most sunlight. In winter it rains a lot here and we collect and store rainwater in a 5000 liter tank uphill. Good luck!