Great site with lots of good info, thanks.. We are looking at running a sprinkler system for our front and back yard, which is around 3/4 of an acre total.. Water will be drawn from a well which is 65 deep, statics at 15ft and has a flow rate of around 12-15 gpm. The well is around 180 from the center of the front and back yard(with around a 2' rise if that). We already have 220v 30 amp run to the shed (well is 50 from the shed). Should we run a holding tank and draw off of this ? Any help is greatly appreciated, and if need I can email and post a drawing of what our yard is. Thanks again everyone...Paul