With 10 schools, 3 support services buildings, roughly 4 miles of chain link fence, hundreds of light posts, hundreds of sign posts, transformer pads, flag poles, generators, gas meters, over a dozen soccer goals, a dozen baseball backstops, storage containers and sheds, etc, etc... We do a lot of string trimming. I can keep 2 guys busy all day all summer long working the trimming route over and over again. I decided no more trimming. If we can't cut it with a rider, we'll kill it. Maybe that's an exageration but definately spraying all our fence lines, leaving a 5" dead strip around all our buildings, and around almost everything else. So Three years ago, this time of year, I put on my backpack sprayer and started walking. 3 days later I gave up. Two years ago, this time of year, I put a small spray tank in the back of my pickup with a 25' hose and me and another guy took turns driving and walking. We couldn't get the truck in lots of places and walking sucks. A week later we were done. This year, I'm smarter and lazier. I turned our spare, retired mower into a fence line spraying machine. It's got a single spray head that I can raise and lower with the mower deck. It's also got a hand held spray wand with about 15' of hose for the stuff I can't reach with the deck mounted head. I added a couple of toggle switches to the mower "dash board". One operates the sprayer pump and the other opens a 12V solenoid valve on the mower deck to turn the deck mounted head on and off. I can mount and unmount the sprayer in about 20 minutes. Used it for the first time today and it works great! Sitting kicks walking's a$$.