We use this sprayer for watering seedlings. It is compact, reasonably light and so portable. Even if you were to use this for localized spraying of weeds, I think it is a cool tool and up to the job, due to the focused wand and sprayer nozzle.
The tank can be put under pressure with pumping action to propel water through the watering wand. The nozzle allows direct flow to the base of the plant being watered or treated. The pressure is moderate so does not unnecessarily disturb the soil.
Please ensure that the sprayer be dedicated to a specific end-use. Use for watering after use with a broad-spectrum herbicide could be a recipe for crop disaster.
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