Alright after many hours studying irrigationtutorials.com I would like you guys to critique my zoning. I am figuring on 17gpm. I have 82psi, 1" water meter, 1" main line. I am a little weary of the 82psi... regulator? Please excuse my wiggly lines. Any info, advice is greatly appreciated. This is another one of the back yard. Any ideas on which is better?