What's kind of amusing is that there is as much weight of brass in the bits of fakery as there is in a real PVB.
Don't know what you mean by that. Without resorting to metaphors, could you describe to me the technical problem with my imitation of a PVB. I want to understand how and why this is a problem and how it wasn't considered a problem when originally installed.
Are you on flat ground? If there is any slope, is it downhill away from the house?
Most of my property pitches gently away from the house. No abrupt changes in elevation anywhere. It would appear that the imitation PVB is elevated higher than any point on my property but I don't know how to tell that for 100% certain. I could always make a quick video and post the link if you think that would be helpful.
Are all of the sprinklers popup sprays or rotors, installed with their tops even with the grade?
Most are popup rotors, two are popup sprays. Don't know how to determine if they are even with grade. Are you talking relative to the ground they are buried in, or relative to a certain reference point.
The idea here is that the plumbing correction is installed at the proper elevation. No fudging allowed.
Completely agree, unless of course that means ripping apart my front walkway.