I want to spray Primo Maxx through my PG. But since the label states I need at least 1/2 gal H2O per 1000 ft^2, I will need to increase the spray output to stay on label. Has anyone tried to do this with any success? I speculate that all I would need to do would be to change the tips to a higher volume flow, but would the pump be able to push 1.5 gals a minute? Any help would be appreciated.