I'm using an older 25 gallon Fimco ATV 140" boom sprayer that I got from TSC, mounted on a TSC carry-all, to do my 4 or so acres of lawn. This year I switched to Trimec 899, a more concentrated form of the Trimec I was using ...
It requires less of the herbicide - and less carrier (water) - so I have to spray less total gallons ..... and it ends up being cheaper ......
Previously, using regular the Trimec, the 25 gallon tank was way too small .... seemed like I was constantly filling it up .... I guess the idea is work smarter, not harder .......
Still, it would be nice to have at least a 50 gallon tank .....
My booms fold inward (not up) and when folded the unit is about the width of my tractor (Kubota B2910)