I have recently ran into a client who isnt on a meter but has a direct connection from her home line to the main city water line. Her line is 3/4". I am use to workin with 1"-1.5" meters. I have a 55-60psi, could someone help me by telling me how i need to figure the gpm allowed per zone. Or what a safe gpm/zone would be to stay under. For normal commercial/resident...i go from anywhere to 20-35gpm... There is no slope..on site..