Learn how to apply liquid lawn care products, like concentrated fertilizers, pesticides and herbicides, using a tank sprayer.

How to Use a Tank Sprayer

1 Mix the solution

Measure out the product you’re using according to the manufacturer’s recommendations. Pour the liquid into the tank. Add water, leaving about a third of the tank empty, so pressure can build up when you pump up the tank.

mix solution

2 Pressurize the tank

Screw the top of the sprayer back on the tank. Pump the handle up and down until it becomes hard to push back down. Push the handle down and twist it clockwise to lock it in place.

pressurize tank sprayer

3 Adjust the nozzle

Rotate the tip of the nozzle to adjust the spray path to a wide spray pattern or precise stream.

4 Apply the product

Pull the trigger on the nozzle to spray the liquid. To cover a broad area, like your lawn, zigzag slowly back and forth in strips. Walk down one row, then come back alongside that row about 1-2 feet away and continue until you have covered the whole area. Wave the nozzle slowly back and forth as you walk to cover a wide strip and overlap each row.

tank sprayer trigger

5 Refill the tank

As you open the tank, the pressure can release and send a spray of chemicals and liquid into your face and eyes. Always tilt the opening away from your face. And, before you open the tank to refill it, open the pressure release valve if there is one.

refill tank sprayer

6 Helpful tip

If you walk backward as you spray, you can avoid walking through an area as you apply the chemicals.

walk backwards when spraying

7 Helpful tip

Be careful not to let the overspray land in unwanted areas like your garden bed.

tank sprayer