just finish my biggest sprinkler job. 81 heads, 13 valves, we finished the project in a total of 112 man hours. How did we do ? I think we pulled in 2400 feet of 1 inch pipe and about 1100 feet of 1 1/4 inch pipe, rain sensor back flow preventer only one spray zone.....total price 7150.00 plus tax. Go ahead gimmie your input... OH buy the way I had fun too !