Hi, What is the best type of pump to go approx. 2000' up the side of a hillside with a difference of 550' in elevation. The creek has plenty of water in it and is clean enough for drinking. Right now I have 850'x 1-1/4" 200psi poly pipe and 1100'x 1" 200psi poly pipe with check valves every 200'. What type of pump would work best for me? Would a 4" deep submersible pump set into 6" steel wellcasing and screened and vented for good water flow be able to pump 2000' up the hill? It's got 17 stages with a 5hp 230v motor and it's rated at 6gpm with a 630' head height. drywellsteve