Even though you’re instructed to clean out the nozzle and chemical basin after every use, nobody really does that. Smith anticipated that and somehow made this super easy to not clog, even after extended use. The only problem is that when it does eventually clog, it’s a right pain in the rear to unscrew, clean it and replace it. If the valve breaks, it’s cheaper to buy an entirely new unit than it is to get replacement parts, which is the one area Smith lacks in. This Chemical Sprayer by Smith will work fantastic with soluble fertilizers, insecticides, pesticides, herbicides, pesticides, and more! It is sturdy and strong and won’t get dinged up by knocks, impact, or drops. The poly wand is 15″ long and flexible. TIt’he nozzle extends its reach, improving the overall maneuverability!