Originally Posted by Ric
Try and get a Tee Jet Catalog, It has all the Height and width spec for their nozzles. From what you are saying I would adjust my height by eye ball then test it on a solid street or surface. That way you can watch the distribution of your spray pattern. If you get even drying on the solid surface you are Good. If not time to adjust. Remember many nozzles are made to Overlap.
What confuses me about he Tee Jet charts is for example a orange jet at 30 PSI is the chart says 0.13 gal per 1000 sq ft. So if I have 7 orange jets do I multiply the number by 7 to get the gal disbursed or devide by 7.