Need recommendations on a water pump

[MarkP]

Do you need that much lift? That pump sounds like a well pump. The pump I selected is rated at half that lift and twice that flow and it works great for pumping water from my tank to my house. I spent big bucks and got a dedicated 48 volt DC vane style pump. I don't know what would happen if I dead-headed it but it hardly slows down under the normal range of pressure that it sees in normal use. The old 12 volt dual diaphragm pump system that I had would vary all over the place.

What will your power situation be? On or off grid? What voltage battery bank?