Question......I am going to be doing a job where a customer wants the heads to shoot like the look of a golf course, I'm thinking Hunter I-25 or I-40. I have 24 gpm at 78 psi, I will be using 1 1/4" poly feeding 1" zone lines. Can I use 1" valves or go to 1 1/2"? How many heads can I put on the zone? I-25 or I-40?