Thank You for this helpfull information. I have tried sketching sprinkler placement as you describe, but am having no luck. It so happens that yard is not exactly as described earlier, would you be so kind as to take a look at sketch provided here and make suggestions on how to handle section at right end: http://members.aol.com/theepres/images/yard2.jpg
By 8', do you mean placing sprinklers on 8' spacings? Should both ends of strip be on seperate valves?
My Yard consists of Strip that measures 7 feet wide x 70 feet long. Could i get youre advice on how to place sprinkler heads. I am hoping that one line down center of strip would do, does this sound like good idea? or should i place heads on both sides of strip?