Originally Posted by greendoctor
Most non air inducted flat fan nozzles suck in the wind. I remember one of my friends running a herbicide trial. He had one of those 9' booms with the nozzles spaced at 10". They were conventional flat fans. He was applying a combination of Celsius and Monument. As it was blowing about 10 MPH with shifts in direction and gusts, I was worried about the trees down wind. If the trees were killed or damaged, that is chemical trespass. I consider conventional flat fans unusable for herbicides except in perfectly still conditions. In my location that is a rare event and those perfectly still conditions are normally accompanied by weather conducive to inversion or volatility.
Could you give me a crash course on air inducted nozzles and non air inducted nozzles? I haven't ever used anything except a chemlawn gun. I agree with you. I would rather turn a spray job down than to try and do it and end up doing it incorrectly where drift damage occurs, etc.