I saw a fellow landscaper yesterday and he had a sprayer ( around 50- 100 gallons) ancored to the fromt of his trailor. It had a small engine connected to it and a hose. He said he uses it for fert. Has anyone ever made one of these? If so, can you give me some info on it?? OR where could I look into buying one of these for mysel? I am in Georgia. Thanks!!!