Lee from Hudson writes
The ones I've used fail from the pump parts deteriorating after use.
Helena Crossbow Herbicide is very oily, so you want to be sure that you are not leaving any product in the sprayer for more than about 24 hours and that you are cleaning your sprayer thoroughly after each use.
Any of the hand pump sprayers that we sell can be used to apply this and other herbicides, just be sure that you always clean the sprayer between uses and let it air dry completely before storing.
Answer last updated on: 05/13/2021
