Thanks. I'll go with the 1/2 inch. Now I need to determine whether to use the 6 or 12 inch Swivel Joint. Seems like 6 inches would be adequate, but I guess extra length would be easy to accomodate. Any suggestions? I did plan to use the 4 inch pop-ups as 2.5 inch seems marginal.
Can someone tell which thread size of Hunter Swivel Joint is compatible with the Rain Bird 1800 series, 1 inch sprinker body (1/2 or 3/4 inch MPT)?
I'm thinking of installing variable heads all around so that I can tweak the spray patterns later if necessary. Is there any reason not to do this except possibly for cost?
I've read that DC valves can be installed below the ground and below the sprinkler heads. Can they also be installed above ground if freezing isn't a problem?
I am aware that RPZ anti-syphon valves have a pressure drop. Is this also true of the DC type? If so how much?
