Spraying for weeds, insects and disease control doesn't need to be labor-intensive with this lightweight sprayer

This Solo 3-gal. Backpack Sprayer with Standard Piston Pump is designed with chemical-resistant parts for years of trouble-free operation. Not recommended for use with abrasive sprays or wettable powders, as these can score the piston and pump cylinder causing leaks and lowering the sprayer's life span.

• Sturdy Construction: The spray tank is made of high-tensile, UV-stabilized polyethylene to withstand high-impact use and resist chemicals and stress
• Portable: Backpack sprayer is lightweight for extended use
• Comfortable: Nylon web straps are padded at the shoulders for comfort, and the pump handle is adjustable for left- or right-hand operation
• Powerful: Delivers weed, insect, and disease control for plants and animals at 60 psi
• Versatile: It comes with four nozzles: flat fan, jet stream, hollow cone and adjustable plastic: for a wide range of applications Easy to Fill: The large, 4"-dia. opening with strainer makes it easy, fast and safe to fill
• Convenient: The trigger lock allows for continuous spraying

If lid doesn't get a tight seal, try screwing it on, then unscrew it a couple or few turns, then screw it back on to get the threads properly aligned.