Hello, new poster here. My sprinkler system has been up and running for 14 years. I currently draw off city water. I would now like to take it off city water and use my lake water instead. I have approximately 1 acre of turf. My backyard backs up to a lake, which is 40' down a steep hillside. My front yard is approximately 200' away from the lake and is 50' up from the water. There are five heads per station @ 3 gpm/head. I can adjust my heads down to 1.5-2 gpm's if necessary. So I'm looking at 7.5 to 15 gpm with a total lift of 50'. Can I get a recommendation for a good pump setup. Thanks, Jack