Chapin 20004 1-Gallon Pump Sprayer

A sprayer is the quietly essential tool of an overseeding project, and the Chapin 20004 is the one that sits on nearly every lawn enthusiast's shelf. Before you seed, you use it to spot-kill the existing weeds you don't want competing with your new grass — a targeted glyphosate or post-emergent pass a couple of weeks ahead clears the way far more precisely than a granular product. After germination, the same sprayer applies liquid starter fertilizer, humic acid, or seaweed bio-stimulants that give young seedlings a boost the granular route can't match at that stage. This one-gallon SureSpray tank has a funnel-top for easy filling, an adjustable cone-to-stream nozzle, and a 34-inch hose that lets you reach without stooping. It is the definitive budget pick — inexpensive, reliably sealed, and easy to rinse between chemicals. For a whole-lawn liquid program you'll eventually want the backpack below, but for spot work and small lawns this is all the sprayer most people need, and at this price there's no reason to overseed without one.