New guy post, please be kind. I've been reading through the archives and have found some great information but haven't come across my particular situation. I have a nice clean run from the water supply a central point where I would like to locate all my valves. But two of the zones go up a slight grade, for a total of about 10' of elevation. I really don't want to run my main all the way out to the high point and locate all my valves out there - and I can feasibly come off the water supply, and run 12' up the wall of a shed and anchor a PVB up there, then come right back down, giving me the required hight above the highest point in the system (and no visual problems because it's behind the shed, but still open for servicing). Does that make more sense than running the main a-way out back and then coming back in for the lower zones? Or am I missing something simple....always an option. Thanks!!