Originally Posted by stebs
cjohn: You laugh, but I have a zone in my front yard that is "allegedly" running about 30 or so gpm through a 5/8" meter and 1" line from the street (city pressure about 70). it aint pretty and I hate it, hammers like hell in the house when the zone shuts off, but nothing I can do about it...
I never said it was the best idea. In that case with 42gpm we had a dynamic of about 15psi i believe, 2" main, master valve, pressure regulators on the valves.