grundfos makes a good reliable 12v pump. i cant remember the specs for 250ft. in ac that would be the magic depth making a 3/4 horse pump the ideal. you could do it with 1/2. you will go from about 7 plus gallons per min to about 3 with the 1/2 hp and the strain may cut life span down. definately choose a varialble speed. in the past the pumps are realitively the same price reguardless of 1/2 or 3/4 but for 1700 plus bucks you dont want to compromise or inferior capibilitys.
personally i always plan on the better gear from the begining. you will save money and time in the future as your desires grow. sisterns are roughly 1 buck a gallon. again go big and then you wont have to add or adjust you system in the future. surface pumping is easy 12v surflow about 80-100 bucks.
this pump will be good to about 12 feet of lift.
check out northern arizona wind and sun since your in the area. i have found there pricing competive but on the high side. i also think theres alot of used solar gear around lake havasu area.
ill check out the otherpower link. my intial thouht is wy build multiple systems. youll have a 75watt pannel sittin there when your not pumping water. i lived on 15watts for 2 years. also in previous topics chowan and i have addressed if your going to be commuting to this property. you can build a extra battery system with isolators on you vehical.
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