I have around 8K of lawn and have a 2 gallon pump sprayer like THIS. I prefer the 2 gallon over the 1 gallon just due to the fact that "if" I need to mix up more I can but usually can get by with 1 gallon if I am spot spraying weeds. The Solo wand accepts TeeJet nozzles so you won't need anything additional besides the nozzles of course.
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