I usually put around 2-4oz per gallon or therebouts in my spot sprayer to kill brush with roundup. That may be overkill on the high number but I don't want to have to do it twice.

I'm sick of riding around with the hand wand hanging out the side of the UTV, I just want to drive down through there and spray out the side.

Here is what I am going to try and do. I've got a spot sprayer with a manifold I can expand so I was going to get a Hamilton boomless nozzle to spray out the left hand side of my UTV to kill brush along the roadside or sides of fields, etc.

http://wlhamiltonco.com/Nozzles.htm The flow rates are a link on that page.

I just need good coverage at a reasonable speed, say 5mph don't I? I don't know that I really need to care about how many gallons per acre I'm spraying do I?

I know how to calculate out how many acres per hour I'm covering at a certain speed with a certain width sprayer. I don't know if that has anything to do with calculating anything in this scenario. What I don't want is to blow through 7 gpm... You'd burn through a 25 gallon ATV sprayer tank in a hundred yards.

I'm having a hard time figuring out what nozzle to get. Is there any way to figure that out or is this going to be trail and error?

My tank is 40 gallon.

I have one that I use to spray road edges and ditch banks. I looked and can't find it in the web. I will get you a picture here in a little bit. I get good coverage at 6mph with my 1.8gpm and 8mph with the 2.whatever gpm at the camp. It sprays down and fans out about 12ft high and out. They make different size jets for it and each puts out more or less flow. Also I can spray a LONG ways with 25gals.

Appreciated... Looks and sounds like what I am looking for. I'll see if I can't figure out who made that or someone that makes something similar.

That's a TeeJet found it pretty easily. I've still go the same problem though they come in about 6 different versions all with different flow rates.

"TeeJet Brass Swivel Spray Off-Center Flat Spray Tip Nozzle"

When the rain stops I will go and get the number off the nozzle. I know I have 2 of them and the one in pic is the one that works best.

I'm using the 0010 fitting.