Hey gang. I've got a 2004 PG Ultra that ain't spraying right. Whenever I spray, the right and left nozzles spray differently. One sprays normally, another just dribbles or sprays really weak. I talked with Pat at PG today and he thought it sounded like mineral buildup inside the nozzles. I bought a new set locally, installed them, and same thing happens. I've totally cleaned the hoses from the pump, through the 3-way valves, to the nozzles, and it still acts up. I took apart the diaphragm housings and cleaned them. The only other thing I can think of is that the diaphragms have somehow gotten screwed up, but that seems unlikely to me. Any ideas? I've got lawns to spray and don't really want to do 16k with a backpack. I did a 7k lawn like that today. There. Now it's time for a brew. I'm thinking either a Gnaw Bone Pale Ale or a Barfly IPA.