Hi..I don't know anything about wells, but I have one and the water is cold and only 18 feet from the surface. I would like to use this water to top off my pool, and to irrigate my one-acre property. There is a 3/4 inch pipe going down through the top soil to the open well beneath. Can I just use some kind of pump to suck up the water and put it through three or more sprinklers on the property? Do I need a holding tank? What size pump? Should I use a submersed pump? If so, what do I use to insert it into the well? I'd really appreciate some help here. Thanks in advance. Dave Combs, Pollock Pines, CA