Greetings all! I inquired a few months back about using a backpack sprayer to treat my sedge problem in this thread: http://www.lawnsite.com/showthread.php?t=174500&highlight=homecutter but based on everyones advice I opted to make a ZTR style sprayer. I said I would post some pics of my progress so here they are. I bought a Northerntool 15 Gallon ATV sprayer and fabricated some tank mounts and a boom out of 1/2 sh40 pvc. The nozzles are threaded 90° micro nozzles from Home Depot and run $2.80 for a 10 pack. I drilled and tapped 9 holes 8" apart are on the boom. The sprays overlap each other for even coverage. I made sure the flow rates were calibrated by filling glasses. Except for two, the nozzle flows were identical out of the pack. The boom is activated by pressing the wand trigger with my foot. The Sureflow 800 series pump will empty the tank in 11 minutes and 30 seconds. Now I just need to figure the correct ground speed based on my lawn size to ensure I deplete the entire tank evenly. Spraying Manage this weekend if all goes well.